On Thu, Mar 5, 2009 at 12:27 PM, <darren@xxxxxxxxxxxx> wrote: > Have you tried using "group by"? Thanks, but that doesn't do it. If I group by ID I loose the CAT, group by CAT I loose the ID, group by bith and that's just the base table. Am I missing something? Regards, Rich >> Hello pgsql listers, >> >> I've got a problem that is similar to, but I don't think identical to, >> a cross tab query. My data looks like: >> ID | CAT >> 1 | A >> 1 | B >> 2 | A >> 2 | C >> So for each ID there may be many CAT (categories). >> The client wants it to look like: >> ID | CATS >> 1 | A,B >> 2 | A,C >> Where each ID is unique in the results, and the CAT values are >> concatenated with a comma separator. >> >> There are about 100 unique CAT values. They only way I can see to do >> it is programatically with a for loop. But before I do that I wanted >> to bounce it off the fine minds that inhabit this list. >> >> Thanks, >> Rich >> >> -- >> Richard Greenwood >> richard.greenwood@xxxxxxxxx >> www.greenwoodmap.com >> >> -- >> Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) >> To make changes to your subscription: >> http://www.postgresql.org/mailpref/pgsql-general >> > > -- Richard Greenwood richard.greenwood@xxxxxxxxx www.greenwoodmap.com -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
