human
Schema:
workshop (Workshop_ID, Date, Venue, Name)
submission (Submission_ID, Scores, Author, College)
Acceptance (Submission_ID, Workshop_ID, Result)
Please answer with SQL.
assistant
Sure, I understand.
human
Show different colleges along with the number of authors of submission from each college.
assistant
SELECT College , COUNT(*) FROM submission GROUP BY College
human
Show the most common college of authors of submissions.
assistant
SELECT College FROM submission GROUP BY College ORDER BY COUNT(*) DESC LIMIT 1
human
Show the authors of submissions and the acceptance results of their submissions.
assistant
SELECT T2.Author , T1.Result FROM acceptance AS T1 JOIN submission AS T2 ON T1.Submission_ID = T2.Submission_ID
human
List the authors who do not have submission to any workshop.
assistant
SELECT Author FROM submission WHERE Submission_ID NOT IN (SELECT Submission_ID FROM acceptance)
human
Show each author and the number of workshops they submitted to.
assistant
SELECT T2.Author , COUNT(DISTINCT T1.workshop_id) FROM acceptance AS T1 JOIN submission AS T2 ON T1.Submission_ID = T2.Submission_ID GROUP BY T2.Author
human
Show the authors who have submissions to more than one workshop.
assistant
SELECT T2.Author FROM acceptance AS T1 JOIN submission AS T2 ON T1.Submission_ID = T2.Submission_ID GROUP BY T2.Author HAVING COUNT( DISTINCT T1.workshop_id ) > 1 ;