I would try to figure it out myself instead of turning in someone else's
answer.
"Nick" <nparfait_at_hotmail.com> wrote in message
news:1016c570.0204212245.3ce693b0_at_posting.google.com...
> Assuming u have the following relations
> student(sid, sname)
> subject(subid, subname)
> enrolled(subid, sid, year)
>
> how would you write the realational algebra for finding the subject
> name which is taken by all students in a particular year.
> ie. only subjects which have all students are displayed.
Received on Tue Apr 23 2002 - 10:26:32 CDT
