Re: Newbie SQL problems

Vemptzuu <temae.sporcaLEVAMI_at_libero.it> wrote in message news:<ceqlhug75v9o757cihpb96kej65mjtg3ot_at_4ax.com>...
> Hi all, I am an Engineering student at the University of Pisa, Italy.
> We are currently studying some DB basics, and I am having some
> problems with SQL queries.
>
> I have the following relation (It's more complex, i'll list only
> attributes i'll need now)
>
> Exam_schema (student-name, result, exam-session)
>
> ex-number: If the university organizes, let's say,
>
> I have the query: "Find all students which have passed at least one
> exam in each exam session this year".
>

Joe Celko posted an article regarding "divide by" some time ago. If you use google you can find it by searching for:  

 hangar divide

in comp.databases.theory

Hope it helps
/Lennart Received on Fri Jun 28 2002 - 21:33:13 CEST