Database: restaurant_1

Question: Which restaurant has highest rating? List the restaurant name and its rating.
SQL: SELECT ResName , Rating FROM Restaurant ORDER BY Rating DESC LIMIT 1;

Question: What is the age of student Linda Smith?
SQL: SELECT Age FROM Student WHERE Fname = "Linda" AND Lname = "Smith";

Question: What is the gender of the student Linda Smith?
SQL: SELECT Sex FROM Student WHERE Fname = "Linda" AND Lname = "Smith";

Question: Which city does student Linda Smith live in?
SQL: SELECT city_code FROM Student WHERE Fname = "Linda" AND Lname = "Smith";

Question: Which Advisor has most of students? List advisor and the number of students.
SQL: SELECT Advisor ,  count(*) FROM Student GROUP BY Advisor ORDER BY count(Advisor) DESC LIMIT 1;

Question: Which major has least number of students? List the major and the number of students.
SQL: SELECT Major ,  count(*) FROM Student GROUP BY Major ORDER BY count(Major) ASC LIMIT 1;

Question: Which major has between 2 and 30 number of students? List major and the number of students.
SQL: SELECT Major ,  count(*) FROM Student GROUP BY Major HAVING count(Major) BETWEEN 2 AND 30;

Question: Which student's age is older than 18 and is majoring in 600? List each student's first and last name.
SQL: SELECT Fname , Lname FROM Student WHERE Age  >  18 AND Major = 600;

Question: List all female students older than 18 who are not majoring in 600. List students' first name and last name.
SQL: SELECT Fname , Lname FROM Student WHERE Age  >  18 AND Major != 600 AND Sex = 'F';

Question: How many restaurant is the Sandwich type restaurant?
SQL: SELECT count(*) FROM Restaurant JOIN Type_Of_Restaurant ON Restaurant.ResID =  Type_Of_Restaurant.ResID JOIN Restaurant_Type ON Type_Of_Restaurant.ResTypeID = Restaurant_Type.ResTypeID GROUP BY Type_Of_Restaurant.ResTypeID HAVING Restaurant_Type.ResTypeName = 'Sandwich'

Question: How long does student Linda Smith spend on the restaurant in total?
SQL: SELECT sum(Spent) FROM Student JOIN Visits_Restaurant ON Student.StuID = Visits_Restaurant.StuID WHERE Student.Fname = "Linda" AND Student.Lname = "Smith";

Question: How many times has the student Linda Smith visited Subway?
SQL: SELECT count(*) FROM Student JOIN Visits_Restaurant ON Student.StuID = Visits_Restaurant.StuID JOIN Restaurant ON Visits_Restaurant.ResID = Restaurant.ResID WHERE Student.Fname = "Linda" AND Student.Lname = "Smith" AND Restaurant.ResName = "Subway";

Question: When did Linda Smith visit Subway?
SQL: SELECT TIME FROM Student JOIN Visits_Restaurant ON Student.StuID = Visits_Restaurant.StuID JOIN Restaurant ON Visits_Restaurant.ResID = Restaurant.ResID WHERE Student.Fname = "Linda" AND Student.Lname = "Smith" AND Restaurant.ResName = "Subway";

Question: At which restaurant did the students spend the least amount of time? List restaurant and the time students spent on in total.
SQL: SELECT Restaurant.ResName ,  sum(Visits_Restaurant.Spent) FROM Visits_Restaurant JOIN Restaurant ON Visits_Restaurant.ResID = Restaurant.ResID GROUP BY Restaurant.ResID ORDER BY sum(Visits_Restaurant.Spent) ASC LIMIT 1;