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course_teach

SELECT T3.Name , T2.Course FROM course_arrange AS T1 JOIN course AS T2 ON T1.Course_ID = T2.Course_ID JOIN teacher AS T3 ON T1.Teacher_ID = T3.Teacher_ID

What is the name of each teacher and what course they teach?

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: What is the name of each teacher and what course they teach?

course_teach

SELECT T3.Name , T2.Course FROM course_arrange AS T1 JOIN course AS T2 ON T1.Course_ID = T2.Course_ID JOIN teacher AS T3 ON T1.Teacher_ID = T3.Teacher_ID ORDER BY T3.Name

Show names of teachers and the courses they are arranged to teach in ascending alphabetical order of the teacher's name.

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: Show names of teachers and the courses they are arranged to teach in ascending alphabetical order of the teacher's name.

course_teach

SELECT T3.Name , T2.Course FROM course_arrange AS T1 JOIN course AS T2 ON T1.Course_ID = T2.Course_ID JOIN teacher AS T3 ON T1.Teacher_ID = T3.Teacher_ID ORDER BY T3.Name

What are the names of the teachers and the courses they teach in ascending alphabetical order by the name of the teacher?

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: What are the names of the teachers and the courses they teach in ascending alphabetical order by the name of the teacher?

course_teach

SELECT T3.Name FROM course_arrange AS T1 JOIN course AS T2 ON T1.Course_ID = T2.Course_ID JOIN teacher AS T3 ON T1.Teacher_ID = T3.Teacher_ID WHERE T2.Course = "Math"

Show the name of the teacher for the math course.

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: Show the name of the teacher for the math course.

course_teach

SELECT T3.Name FROM course_arrange AS T1 JOIN course AS T2 ON T1.Course_ID = T2.Course_ID JOIN teacher AS T3 ON T1.Teacher_ID = T3.Teacher_ID WHERE T2.Course = "Math"

What are the names of the people who teach math courses?

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: What are the names of the people who teach math courses?

course_teach

SELECT T2.Name , COUNT(*) FROM course_arrange AS T1 JOIN teacher AS T2 ON T1.Teacher_ID = T2.Teacher_ID GROUP BY T2.Name

Show names of teachers and the number of courses they teach.

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: Show names of teachers and the number of courses they teach.

course_teach

SELECT T2.Name , COUNT(*) FROM course_arrange AS T1 JOIN teacher AS T2 ON T1.Teacher_ID = T2.Teacher_ID GROUP BY T2.Name

What are the names of the teachers and how many courses do they teach?

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: What are the names of the teachers and how many courses do they teach?

course_teach

SELECT T2.Name FROM course_arrange AS T1 JOIN teacher AS T2 ON T1.Teacher_ID = T2.Teacher_ID GROUP BY T2.Name HAVING COUNT(*) >= 2

Show names of teachers that teach at least two courses.

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: Show names of teachers that teach at least two courses.

course_teach

SELECT T2.Name FROM course_arrange AS T1 JOIN teacher AS T2 ON T1.Teacher_ID = T2.Teacher_ID GROUP BY T2.Name HAVING COUNT(*) >= 2

What are the names of the teachers who teach at least two courses?

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: What are the names of the teachers who teach at least two courses?

course_teach

SELECT Name FROM teacher WHERE Teacher_id NOT IN (SELECT Teacher_id FROM course_arrange)

List the names of teachers who have not been arranged to teach courses.

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: List the names of teachers who have not been arranged to teach courses.

course_teach

SELECT Name FROM teacher WHERE Teacher_id NOT IN (SELECT Teacher_id FROM course_arrange)

What are the names of the teachers whose courses have not been arranged?

CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") );

CREATE TABLE course (Course_ID INT, Staring_Date TEXT, Course TEXT); CREATE TABLE teacher (Teacher_ID INT, Name TEXT, Age TEXT, Hometown TEXT); CREATE TABLE course_arrange (Course_ID INT, Teacher_ID INT, Grade INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "course" ( "Course_ID" int, "Staring_Date" text, "Course" text, PRIMARY KEY ("Course_ID") ); CREATE TABLE "teacher" ( "Teacher_ID" int, "Name" text, "Age" text, "Hometown" text, PRIMARY KEY ("Teacher_ID") ); CREATE TABLE "course_arrange" ( "Course_ID" int, "Teacher_ID" int, "Grade" int, PRIMARY KEY ("Course_ID","Teacher_ID","Grade"), FOREIGN KEY ("Course_ID") REFERENCES `course`("Course_ID"), FOREIGN KEY ("Teacher_ID") REFERENCES `teacher`("Teacher_ID") ); QUESTION: What are the names of the teachers whose courses have not been arranged?

museum_visit

SELECT count(*) FROM visitor WHERE age < 30

How many visitors below age 30 are there?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: How many visitors below age 30 are there?

museum_visit

SELECT name FROM visitor WHERE Level_of_membership > 4 ORDER BY Level_of_membership DESC

Find the names of the visitors whose membership level is higher than 4, and order the results by the level from high to low.

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: Find the names of the visitors whose membership level is higher than 4, and order the results by the level from high to low.

museum_visit

SELECT avg(age) FROM visitor WHERE Level_of_membership <= 4

What is the average age of the visitors whose membership level is not higher than 4?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: What is the average age of the visitors whose membership level is not higher than 4?

museum_visit

SELECT name , Level_of_membership FROM visitor WHERE Level_of_membership > 4 ORDER BY age DESC

Find the name and membership level of the visitors whose membership level is higher than 4, and sort by their age from old to young.

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: Find the name and membership level of the visitors whose membership level is higher than 4, and sort by their age from old to young.

museum_visit

SELECT museum_id , name FROM museum ORDER BY num_of_staff DESC LIMIT 1

Find the id and name of the museum that has the most staff members?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: Find the id and name of the museum that has the most staff members?

museum_visit

SELECT avg(num_of_staff) FROM museum WHERE open_year < 2009

Find the average number of staff working for the museums that were open before 2009.

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: Find the average number of staff working for the museums that were open before 2009.

museum_visit

SELECT Num_of_Staff , Open_Year FROM museum WHERE name = 'Plaza Museum'

What are the opening year and staff number of the museum named Plaza Museum?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: What are the opening year and staff number of the museum named Plaza Museum?

museum_visit

SELECT name FROM museum WHERE num_of_staff > (SELECT min(num_of_staff) FROM museum WHERE open_year > 2010)

find the names of museums which have more staff than the minimum staff number of all museums opened after 2010.

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: find the names of museums which have more staff than the minimum staff number of all museums opened after 2010.

museum_visit

SELECT t1.id , t1.name , t1.age FROM visitor AS t1 JOIN visit AS t2 ON t1.id = t2.visitor_id GROUP BY t1.id HAVING count(*) > 1

find the id, name and age for visitors who visited some museums more than once.

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: find the id, name and age for visitors who visited some museums more than once.

museum_visit

SELECT t2.visitor_id , t1.name , t1.Level_of_membership FROM visitor AS t1 JOIN visit AS t2 ON t1.id = t2.visitor_id GROUP BY t2.visitor_id ORDER BY sum(t2.Total_spent) DESC LIMIT 1

What are the id, name and membership level of visitors who have spent the largest amount of money in total in all museum tickets?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

extra

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: What are the id, name and membership level of visitors who have spent the largest amount of money in total in all museum tickets?

museum_visit

SELECT t2.Museum_ID , t1.name FROM museum AS t1 JOIN visit AS t2 ON t1.Museum_ID = t2.Museum_ID GROUP BY t2.Museum_ID ORDER BY count(*) DESC LIMIT 1

What are the id and name of the museum visited most times?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

extra

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: What are the id and name of the museum visited most times?

museum_visit

SELECT name FROM museum WHERE Museum_ID NOT IN (SELECT museum_id FROM visit)

What is the name of the museum that had no visitor yet?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: What is the name of the museum that had no visitor yet?

museum_visit

SELECT t1.name , t1.age FROM visitor AS t1 JOIN visit AS t2 ON t1.id = t2.visitor_id ORDER BY t2.num_of_ticket DESC LIMIT 1

Find the name and age of the visitor who bought the most tickets at once.

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: Find the name and age of the visitor who bought the most tickets at once.

museum_visit

SELECT avg(num_of_ticket) , max(num_of_ticket) FROM visit

What are the average and maximum number of tickets bought in all visits?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: What are the average and maximum number of tickets bought in all visits?

museum_visit

SELECT sum(t2.Total_spent) FROM visitor AS t1 JOIN visit AS t2 ON t1.id = t2.visitor_id WHERE t1.Level_of_membership = 1

What is the total ticket expense of the visitors whose membership level is 1?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: What is the total ticket expense of the visitors whose membership level is 1?

museum_visit

SELECT t1.name FROM visitor AS t1 JOIN visit AS t2 ON t1.id = t2.visitor_id JOIN museum AS t3 ON t3.Museum_ID = t2.Museum_ID WHERE t3.open_year < 2009 INTERSECT SELECT t1.name FROM visitor AS t1 JOIN visit AS t2 ON t1.id = t2.visitor_id JOIN museum AS t3 ON t3.Museum_ID = t2.Museum_ID WHERE t3.open_year > 2011

What is the name of the visitor who visited both a museum opened before 2009 and a museum opened after 2011?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

extra

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: What is the name of the visitor who visited both a museum opened before 2009 and a museum opened after 2011?

museum_visit

SELECT count(*) FROM visitor WHERE id NOT IN (SELECT t2.visitor_id FROM museum AS t1 JOIN visit AS t2 ON t1.Museum_ID = t2.Museum_ID WHERE t1.open_year > 2010)

Find the number of visitors who did not visit any museum opened after 2010.

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

extra

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: Find the number of visitors who did not visit any museum opened after 2010.

museum_visit

SELECT count(*) FROM museum WHERE open_year > 2013 OR open_year < 2008

How many museums were opened after 2013 or before 2008?

CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") );

CREATE TABLE museum (Museum_ID INT, Name TEXT, Num_of_Staff INT, Open_Year TEXT); CREATE TABLE visitor (ID INT, Name TEXT, Level_of_membership INT, Age INT); CREATE TABLE visit (Museum_ID INT, visitor_ID TEXT, Num_of_Ticket INT, Total_spent REAL);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "museum" ( "Museum_ID" int, "Name" text, "Num_of_Staff" int, "Open_Year" text, PRIMARY KEY ("Museum_ID") ); CREATE TABLE "visitor" ( "ID" int, "Name" text, "Level_of_membership" int, "Age" int, PRIMARY KEY ("ID") ); CREATE TABLE "visit" ( "Museum_ID" int, "visitor_ID" text, "Num_of_Ticket" int, "Total_spent" real, PRIMARY KEY ("Museum_ID","visitor_ID"), FOREIGN KEY ("Museum_ID") REFERENCES `museum`("Museum_ID"), FOREIGN KEY ("visitor_ID") REFERENCES `visitor`("ID") ); QUESTION: How many museums were opened after 2013 or before 2008?

wta_1

SELECT count(*) FROM players

Find the total number of players.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the total number of players.

wta_1

SELECT count(*) FROM players

How many players are there?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many players are there?

wta_1

SELECT count(*) FROM matches

Find the total number of matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the total number of matches.

wta_1

SELECT count(*) FROM matches

Count the number of matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Count the number of matches.

wta_1

SELECT first_name , birth_date FROM players WHERE country_code = 'USA'

List the first name and birth date of all players from the country with code USA.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: List the first name and birth date of all players from the country with code USA.

wta_1

SELECT first_name , birth_date FROM players WHERE country_code = 'USA'

What are the first names and birth dates of players from the USA?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the first names and birth dates of players from the USA?

wta_1

SELECT avg(loser_age) , avg(winner_age) FROM matches

Find the average age of losers and winners of all matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the average age of losers and winners of all matches.

wta_1

SELECT avg(loser_age) , avg(winner_age) FROM matches

What are the average ages of losers and winners across matches?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the average ages of losers and winners across matches?

wta_1

SELECT avg(winner_rank) FROM matches

Find the average rank of winners in all matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the average rank of winners in all matches.

wta_1

SELECT avg(winner_rank) FROM matches

What is the average rank for winners in all matches?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What is the average rank for winners in all matches?

wta_1

SELECT min(loser_rank) FROM matches

Find the highest rank of losers in all matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the highest rank of losers in all matches.

wta_1

SELECT min(loser_rank) FROM matches

What is the best rank of losers across all matches?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What is the best rank of losers across all matches?

wta_1

SELECT count(DISTINCT country_code) FROM players

find the number of distinct country codes of all players.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: find the number of distinct country codes of all players.

wta_1

SELECT count(DISTINCT country_code) FROM players

How many distinct countries do players come from?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many distinct countries do players come from?

wta_1

SELECT count(DISTINCT loser_name) FROM matches

Find the number of distinct name of losers.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the number of distinct name of losers.

wta_1

SELECT count(DISTINCT loser_name) FROM matches

How many different loser names are there?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many different loser names are there?

wta_1

SELECT tourney_name FROM matches GROUP BY tourney_name HAVING count(*) > 10

Find the name of tourney that has more than 10 matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the name of tourney that has more than 10 matches.

wta_1

SELECT tourney_name FROM matches GROUP BY tourney_name HAVING count(*) > 10

What are the names of tournaments that have more than 10 matches?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the names of tournaments that have more than 10 matches?

wta_1

SELECT winner_name FROM matches WHERE YEAR = 2013 INTERSECT SELECT winner_name FROM matches WHERE YEAR = 2016

List the names of all winners who played in both 2013 and 2016.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: List the names of all winners who played in both 2013 and 2016.

wta_1

SELECT winner_name FROM matches WHERE YEAR = 2013 INTERSECT SELECT winner_name FROM matches WHERE YEAR = 2016

What are the names of players who won in both 2013 and 2016?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the names of players who won in both 2013 and 2016?

wta_1

SELECT count(*) FROM matches WHERE YEAR = 2013 OR YEAR = 2016

List the number of all matches who played in years of 2013 or 2016.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: List the number of all matches who played in years of 2013 or 2016.

wta_1

SELECT count(*) FROM matches WHERE YEAR = 2013 OR YEAR = 2016

How many matches were played in 2013 or 2016?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many matches were played in 2013 or 2016?

wta_1

SELECT T1.country_code , T1.first_name FROM players AS T1 JOIN matches AS T2 ON T1.player_id = T2.winner_id WHERE T2.tourney_name = 'WTA Championships' INTERSECT SELECT T1.country_code , T1.first_name FROM players AS T1 JOIN matches AS T2 ON T1.player_id = T2.winner_id WHERE T2.tourney_name = 'Australian Open'

What are the country code and first name of the players who won in both tourney WTA Championships and Australian Open?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

extra

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the country code and first name of the players who won in both tourney WTA Championships and Australian Open?

wta_1

SELECT T1.country_code , T1.first_name FROM players AS T1 JOIN matches AS T2 ON T1.player_id = T2.winner_id WHERE T2.tourney_name = 'WTA Championships' INTERSECT SELECT T1.country_code , T1.first_name FROM players AS T1 JOIN matches AS T2 ON T1.player_id = T2.winner_id WHERE T2.tourney_name = 'Australian Open'

What are the first names and country codes for players who won both the WTA Championships and the Australian Open?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

extra

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the first names and country codes for players who won both the WTA Championships and the Australian Open?

wta_1

SELECT first_name , country_code FROM players ORDER BY birth_date LIMIT 1

Find the first name and country code of the oldest player.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the first name and country code of the oldest player.

wta_1

SELECT first_name , country_code FROM players ORDER BY birth_date LIMIT 1

What is the first name and country code of the oldest player?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What is the first name and country code of the oldest player?

wta_1

SELECT first_name , last_name FROM players ORDER BY birth_date

List the first and last name of all players in the order of birth date.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: List the first and last name of all players in the order of birth date.

wta_1

SELECT first_name , last_name FROM players ORDER BY birth_date

What are the full names of all players, sorted by birth date?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the full names of all players, sorted by birth date?

wta_1

SELECT first_name , last_name FROM players WHERE hand = 'L' ORDER BY birth_date

List the first and last name of all players who are left / L hand in the order of birth date.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: List the first and last name of all players who are left / L hand in the order of birth date.

wta_1

SELECT first_name , last_name FROM players WHERE hand = 'L' ORDER BY birth_date

What are the full names of all left handed players, in order of birth date?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the full names of all left handed players, in order of birth date?

wta_1

SELECT T1.country_code , T1.first_name FROM players AS T1 JOIN rankings AS T2 ON T1.player_id = T2.player_id ORDER BY T2.tours DESC LIMIT 1

Find the first name and country code of the player who did the most number of tours.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the first name and country code of the player who did the most number of tours.

wta_1

SELECT T1.country_code , T1.first_name FROM players AS T1 JOIN rankings AS T2 ON T1.player_id = T2.player_id ORDER BY T2.tours DESC LIMIT 1

What is the first name and country code of the player with the most tours?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What is the first name and country code of the player with the most tours?

wta_1

SELECT YEAR FROM matches GROUP BY YEAR ORDER BY count(*) DESC LIMIT 1

Find the year that has the most number of matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the year that has the most number of matches.

wta_1

SELECT YEAR FROM matches GROUP BY YEAR ORDER BY count(*) DESC LIMIT 1

Which year had the most matches?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Which year had the most matches?

wta_1

SELECT winner_name , winner_rank_points FROM matches GROUP BY winner_name ORDER BY count(*) DESC LIMIT 1

Find the name and rank points of the winner who won the most times.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the name and rank points of the winner who won the most times.

wta_1

SELECT winner_name , winner_rank_points FROM matches GROUP BY winner_name ORDER BY count(*) DESC LIMIT 1

What is the name of the winner who has won the most matches, and how many rank points does this player have?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What is the name of the winner who has won the most matches, and how many rank points does this player have?

wta_1

SELECT winner_name FROM matches WHERE tourney_name = 'Australian Open' ORDER BY winner_rank_points DESC LIMIT 1

Find the name of the winner who has the highest rank points and participated in the Australian Open tourney.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the name of the winner who has the highest rank points and participated in the Australian Open tourney.

wta_1

SELECT winner_name FROM matches WHERE tourney_name = 'Australian Open' ORDER BY winner_rank_points DESC LIMIT 1

What is the name of the winner with the most rank points who participated in the Australian Open tournament?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What is the name of the winner with the most rank points who participated in the Australian Open tournament?

wta_1

SELECT winner_name , loser_name FROM matches ORDER BY minutes DESC LIMIT 1

find the names of loser and winner who played in the match with greatest number of minutes.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: find the names of loser and winner who played in the match with greatest number of minutes.

wta_1

SELECT winner_name , loser_name FROM matches ORDER BY minutes DESC LIMIT 1

What are the names of the winner and loser who played in the longest match?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the names of the winner and loser who played in the longest match?

wta_1

SELECT avg(ranking) , T1.first_name FROM players AS T1 JOIN rankings AS T2 ON T1.player_id = T2.player_id GROUP BY T1.first_name

Find the average ranking for each player and their first name.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the average ranking for each player and their first name.

wta_1

SELECT avg(ranking) , T1.first_name FROM players AS T1 JOIN rankings AS T2 ON T1.player_id = T2.player_id GROUP BY T1.first_name

What are the first names of all players, and their average rankings?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the first names of all players, and their average rankings?

wta_1

SELECT sum(ranking_points) , T1.first_name FROM players AS T1 JOIN rankings AS T2 ON T1.player_id = T2.player_id GROUP BY T1.first_name

Find the total ranking points for each player and their first name.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the total ranking points for each player and their first name.

wta_1

SELECT sum(ranking_points) , T1.first_name FROM players AS T1 JOIN rankings AS T2 ON T1.player_id = T2.player_id GROUP BY T1.first_name

What are the first names of all players, and their total ranking points?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the first names of all players, and their total ranking points?

wta_1

SELECT count(*) , country_code FROM players GROUP BY country_code

find the number of players for each country.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: find the number of players for each country.

wta_1

SELECT count(*) , country_code FROM players GROUP BY country_code

How many players are from each country?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many players are from each country?

wta_1

SELECT country_code FROM players GROUP BY country_code ORDER BY count(*) DESC LIMIT 1

find the code of the country where has the greatest number of players.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: find the code of the country where has the greatest number of players.

wta_1

SELECT country_code FROM players GROUP BY country_code ORDER BY count(*) DESC LIMIT 1

What is the code of the country with the most players?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What is the code of the country with the most players?

wta_1

SELECT country_code FROM players GROUP BY country_code HAVING count(*) > 50

Find the codes of countries that have more than 50 players.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the codes of countries that have more than 50 players.

wta_1

SELECT country_code FROM players GROUP BY country_code HAVING count(*) > 50

What are the codes of countries with more than 50 players?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the codes of countries with more than 50 players?

wta_1

SELECT sum(tours) , ranking_date FROM rankings GROUP BY ranking_date

Find the total number of tours for each ranking date.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the total number of tours for each ranking date.

wta_1

SELECT sum(tours) , ranking_date FROM rankings GROUP BY ranking_date

How many total tours were there for each ranking date?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many total tours were there for each ranking date?

wta_1

SELECT count(*) , YEAR FROM matches GROUP BY YEAR

Find the number of matches happened in each year.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the number of matches happened in each year.

wta_1

SELECT count(*) , YEAR FROM matches GROUP BY YEAR

How many matches were played in each year?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many matches were played in each year?

wta_1

SELECT DISTINCT winner_name , winner_rank FROM matches ORDER BY winner_age LIMIT 3

Find the name and rank of the 3 youngest winners across all matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the name and rank of the 3 youngest winners across all matches.

wta_1

SELECT DISTINCT winner_name , winner_rank FROM matches ORDER BY winner_age LIMIT 3

What are the names and ranks of the three youngest winners across all matches?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What are the names and ranks of the three youngest winners across all matches?

wta_1

SELECT count(DISTINCT winner_name) FROM matches WHERE tourney_name = 'WTA Championships' AND winner_hand = 'L'

How many different winners both participated in the WTA Championships and were left handed?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many different winners both participated in the WTA Championships and were left handed?

wta_1

SELECT count(DISTINCT winner_name) FROM matches WHERE tourney_name = 'WTA Championships' AND winner_hand = 'L'

Find the number of left handed winners who participated in the WTA Championships.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the number of left handed winners who participated in the WTA Championships.

wta_1

SELECT T1.first_name , T1.country_code , T1.birth_date FROM players AS T1 JOIN matches AS T2 ON T1.player_id = T2.winner_id ORDER BY T2.winner_rank_points DESC LIMIT 1

Find the first name, country code and birth date of the winner who has the highest rank points in all matches.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the first name, country code and birth date of the winner who has the highest rank points in all matches.

wta_1

SELECT T1.first_name , T1.country_code , T1.birth_date FROM players AS T1 JOIN matches AS T2 ON T1.player_id = T2.winner_id ORDER BY T2.winner_rank_points DESC LIMIT 1

What is the first name, country code, and birth date of the player with the most winner rank points across all matches?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: What is the first name, country code, and birth date of the player with the most winner rank points across all matches?

wta_1

SELECT count(*) , hand FROM players GROUP BY hand

Find the number of players for each hand type.

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: Find the number of players for each hand type.

wta_1

SELECT count(*) , hand FROM players GROUP BY hand

How many players are there for each hand type?

CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) );

CREATE TABLE players (player_id INT, first_name TEXT, last_name TEXT, hand TEXT, birth_date DATE, country_code TEXT); CREATE TABLE matches (best_of INT, draw_size INT, loser_age FLOAT, loser_entry TEXT, loser_hand TEXT, loser_ht INT, loser_id INT, loser_ioc TEXT, loser_name TEXT, loser_rank INT, loser_rank_points INT, loser_seed INT, match_num INT, minutes INT, round TEXT, score TEXT, surface TEXT, tourney_date DATE, tourney_id TEXT, tourney_level TEXT, tourney_name TEXT, winner_age FLOAT, winner_entry TEXT, winner_hand TEXT, winner_ht INT, winner_id INT, winner_ioc TEXT, winner_name TEXT, winner_rank INT, winner_rank_points INT, winner_seed INT, year INT); CREATE TABLE rankings (ranking_date DATE, ranking INT, player_id INT, ranking_points INT, tours INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE matches( "best_of" INT, "draw_size" INT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE qualifying_matches( "best_of" INT, "draw_size" INT, "l_1stIn" TEXT, "l_1stWon" TEXT, "l_2ndWon" TEXT, "l_SvGms" TEXT, "l_ace" TEXT, "l_bpFaced" TEXT, "l_bpSaved" TEXT, "l_df" TEXT, "l_svpt" TEXT, "loser_age" FLOAT, "loser_entry" TEXT, "loser_hand" TEXT, "loser_ht" INT, "loser_id" INT, "loser_ioc" TEXT, "loser_name" TEXT, "loser_rank" INT, "loser_rank_points" INT, "loser_seed" INT, "match_num" INT, "minutes" INT, "round" TEXT, "score" TEXT, "surface" TEXT, "tourney_date" DATE, "tourney_id" TEXT, "tourney_level" TEXT, "tourney_name" TEXT, "w_1stIn" TEXT, "w_1stWon" TEXT, "w_2ndWon" TEXT, "w_SvGms" TEXT, "w_ace" TEXT, "w_bpFaced" TEXT, "w_bpSaved" TEXT, "w_df" TEXT, "w_svpt" TEXT, "winner_age" FLOAT, "winner_entry" TEXT, "winner_hand" TEXT, "winner_ht" INT, "winner_id" INT, "winner_ioc" TEXT, "winner_name" TEXT, "winner_rank" INT, "winner_rank_points" INT, "winner_seed" INT, "year" INT, FOREIGN KEY(loser_id) REFERENCES players(player_id), FOREIGN KEY(winner_id) REFERENCES players(player_id) ); CREATE TABLE rankings( "ranking_date" DATE, "ranking" INT, "player_id" INT, "ranking_points" INT, "tours" INT, FOREIGN KEY(player_id) REFERENCES players(player_id) ); QUESTION: How many players are there for each hand type?

battle_death

SELECT count(*) FROM ship WHERE disposition_of_ship = 'Captured'

How many ships ended up being 'Captured'?

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: How many ships ended up being 'Captured'?

battle_death

SELECT name , tonnage FROM ship ORDER BY name DESC

List the name and tonnage ordered by in descending alphaetical order for the names.

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: List the name and tonnage ordered by in descending alphaetical order for the names.

battle_death

SELECT name , date FROM battle

List the name, date and result of each battle.

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: List the name, date and result of each battle.

battle_death

SELECT max(killed) , min(killed) FROM death

What is maximum and minimum death toll caused each time?

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: What is maximum and minimum death toll caused each time?

battle_death

SELECT avg(injured) FROM death

What is the average number of injuries caused each time?

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

easy

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: What is the average number of injuries caused each time?

battle_death

SELECT T1.killed , T1.injured FROM death AS T1 JOIN ship AS t2 ON T1.caused_by_ship_id = T2.id WHERE T2.tonnage = 't'

What are the death and injury situations caused by the ship with tonnage 't'?

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: What are the death and injury situations caused by the ship with tonnage 't'?

battle_death

SELECT name , RESULT FROM battle WHERE bulgarian_commander != 'Boril'

What are the name and results of the battles when the bulgarian commander is not 'Boril'

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: What are the name and results of the battles when the bulgarian commander is not 'Boril'

battle_death

SELECT DISTINCT T1.id , T1.name FROM battle AS T1 JOIN ship AS T2 ON T1.id = T2.lost_in_battle WHERE T2.ship_type = 'Brig'

What are the different ids and names of the battles that lost any 'Brig' type shipes?

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

medium

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: What are the different ids and names of the battles that lost any 'Brig' type shipes?

battle_death

SELECT T1.id , T1.name FROM battle AS T1 JOIN ship AS T2 ON T1.id = T2.lost_in_battle JOIN death AS T3 ON T2.id = T3.caused_by_ship_id GROUP BY T1.id HAVING sum(T3.killed) > 10

What are the ids and names of the battles that led to more than 10 people killed in total.

CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") );

CREATE TABLE battle (id INT, name TEXT, date TEXT, bulgarian_commander TEXT, latin_commander TEXT, result TEXT); CREATE TABLE ship (lost_in_battle INT, id INT, name TEXT, tonnage TEXT, ship_type TEXT, location TEXT, disposition_of_ship TEXT); CREATE TABLE death (caused_by_ship_id INT, id INT, note TEXT, killed INT, injured INT);

hard

Provide the SQL query that answers the QUESTION, with no explanation or special characters. CONTEXT: Relevant SQL tables, with their properties: CREATE TABLE "battle" ( "id" int, "name" text, "date" text, "bulgarian_commander" text, "latin_commander" text, "result" text, primary key("id") ); CREATE TABLE "ship" ( "lost_in_battle" int, "id" int, "name" text, "tonnage" text, "ship_type" text, "location" text, "disposition_of_ship" text, primary key("id"), foreign key (`lost_in_battle`) references `battle`("id") ); CREATE TABLE "death" ( "caused_by_ship_id" int, "id" int, "note" text, "killed" int, "injured" int, primary key("id"), foreign key ("caused_by_ship_id") references `ship`("id") ); QUESTION: What are the ids and names of the battles that led to more than 10 people killed in total.