how many acceptance are presented on the table
select count ( * ) from acceptance
what is highest score of submission
select scores from submission order by scores desc limit 1
list out the authors
select author from submission
what is the college of Steve Niehaus
select college from submission where author = "Steve Niehaus"
list the authors who do not have submission to any workshop
select author from submission where submission_id not in ( select submission_id from acceptance )