On Tuesday 04 November 2003 15:16, Jodi Kanter wrote:
> Is there a straight forward way to pull out duplicates in a particular
> field given a value in another field?
> For example, I have a table that lists users and study names associated
> with those users. Each user can have one or more study names. My goal is
> to determine if any of these people have duplicate study names. There
> are duplicated study names across the system and that is ok. I just want
> to see if any users have duplicate study names among their studies.
Something like:
SELECT created_by, study_name, count(sty_pk)
FROM study
GROUP BY created_by, study_name
HAVING count(sty_pk) > 1;
-- Richard Huxton Archonet Ltd