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
list the authors have submissions
assistant
SELECT Author FROM submission;
human
show me the list of authors who have submissions to workshop.
assistant
SELECT distinct T2.Author FROM acceptance AS T1 JOIN submission AS T2 ON T1.Submission_ID = T2.Submission_ID;
human
list 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 ;