human
Schema:
classroom (building, room_number, capacity)
department (dept_name, building, budget)
course (course_id, title, dept_name, credits)
instructor (ID, name, dept_name, salary)
section (course_id, sec_id, semester, year, building, room_number, time_slot_id)
teaches (ID, course_id, sec_id, semester, year)
student (ID, name, dept_name, tot_cred)
takes (ID, course_id, sec_id, semester, year, grade)
advisor (s_ID, i_ID)
time_slot (time_slot_id, day, start_hr, start_min, end_hr, end_min)
prereq (course_id, prereq_id)
Please answer with SQL.
assistant
Sure, I understand.
human
How many departments offer courses?
assistant
SELECT count(DISTINCT dept_name) FROM course
human
Find the name of department has the highest amount of students?
assistant
SELECT dept_name FROM student GROUP BY dept_name ORDER BY count(*) DESC LIMIT 1
human
Find the total credits of courses provided by different department.
assistant
SELECT sum(credits) , dept_name FROM course GROUP BY dept_name
human
Find the names of the top 3 departments that provide the largest amount of courses?
assistant
SELECT dept_name FROM course GROUP BY dept_name ORDER BY count(*) DESC LIMIT 3
human
What is the name of the student who has the highest total credits in the History department.
assistant
SELECT name FROM student WHERE dept_name = 'History' ORDER BY tot_cred DESC LIMIT 1
human
What is the name of the department with the most credits?
assistant
SELECT dept_name FROM course GROUP BY dept_name ORDER BY SUM( credits ) DESC LIMIT 1 ;