Database: college_1

Question: What are the first names of all students taking accoutning and Computer Information Systems classes?
SQL: SELECT T1.stu_fname FROM student AS T1 JOIN enroll AS T2 ON T1.stu_num  =  T2.stu_num JOIN CLASS AS T3 ON T2.class_code  =  T3.class_code JOIN course AS T4 ON T3.crs_code  =  T4.crs_code JOIN department AS T5 ON T5.dept_code  =  T4.dept_code WHERE T5.dept_name  =  'Accounting' INTERSECT SELECT T1.stu_fname FROM student AS T1 JOIN enroll AS T2 ON T1.stu_num  =  T2.stu_num JOIN CLASS AS T3 ON T2.class_code  =  T3.class_code JOIN course AS T4 ON T3.crs_code  =  T4.crs_code JOIN department AS T5 ON T5.dept_code  =  T4.dept_code WHERE T5.dept_name  =  'Computer Info. Systems'

Question: What is the average GPA of students taking ACCT-211?
SQL: SELECT avg(T2.stu_gpa) FROM enroll AS T1 JOIN student AS T2 ON T1.stu_num  =  T2.stu_num JOIN CLASS AS T3 ON T1.class_code  =  T3.class_code WHERE T3.crs_code  =  'ACCT-211'

Question: What is the first name, GPA, and phone number of the students with the top 5 GPAs?
SQL: SELECT stu_gpa ,  stu_phone ,  stu_fname FROM student ORDER BY stu_gpa DESC LIMIT 5

Question: What is the name of the department with the student that has the lowest GPA?
SQL: SELECT T2.dept_name FROM student AS T1 JOIN department AS T2 ON T1.dept_code  =  T2.dept_code ORDER BY stu_gpa LIMIT 1

Question: What is the first name and GPA of every student that has a GPA lower than average?
SQL: SELECT stu_fname ,  stu_gpa FROM student WHERE stu_gpa  <  (SELECT avg(stu_gpa) FROM student)

Question: What is the name and address of the department with the most students?
SQL: SELECT T2.dept_name ,  T2.dept_address FROM student AS T1 JOIN department AS T2 ON T1.dept_code  =  T2.dept_code GROUP BY T1.dept_code ORDER BY count(*) DESC LIMIT 1

Question: What is the name, address, and number of students in the departments that have the 3 most students?
SQL: SELECT T2.dept_name ,  T2.dept_address ,  count(*) FROM student AS T1 JOIN department AS T2 ON T1.dept_code  =  T2.dept_code GROUP BY T1.dept_code ORDER BY count(*) DESC LIMIT 3

Question: What are the first names and office of the professors who are in the history department and have a Ph.D?
SQL: SELECT T1.emp_fname ,  T2.prof_office FROM employee AS T1 JOIN professor AS T2 ON T1.emp_num  =  T2.emp_num JOIN department AS T3 ON T3.dept_code  =  T2.dept_code WHERE T3.dept_name  =  'History' AND T2.prof_high_degree  =  'Ph.D.'

Question: What are the first names of all teachers who have taught a course and the corresponding course codes?
SQL: SELECT T2.emp_fname ,  T1.crs_code FROM CLASS AS T1 JOIN employee AS T2 ON T1.prof_num  =  T2.emp_num

Question: What are the first names of all teachers who have taught a course and the corresponding descriptions?
SQL: SELECT T2.emp_fname ,  T3.crs_description FROM CLASS AS T1 JOIN employee AS T2 ON T1.prof_num  =  T2.emp_num JOIN course AS T3 ON T1.crs_code  =  T3.crs_code