Re: question on UPDATE TABLE

Thanks a lot! It works. :)

On Fri, 2002-08-23 at 15:51, Stephan Szabo wrote:
> On 23 Aug 2002, Wei Weng wrote:
>
> > I have this query
> >
> > UPDATE ONLY ContentSummaries
> > SET AccessID = '685d96de-1d09-11b2-beec-0001031d54ce'
> > FROM Categories AS cat, ContentTypes AS ct, ContentSummaries AS cs LEFT
> > OUTER JOIN Publishers AS pb ON (pb.PublisherID = cs.PublisherID)
> > WHERE cs.CreationDate IS NOT NULL AND cat.CategoryID = cs.CategoryID AND
> > ct.ContentTypeID = cs.ContentTypeID AND cat.CategoryID =
> > '391b11d0-1d09-11b2-a312-0001031d54ce'
>
> You do realize you're getting two copies of ContentSummaries in this
> update and only one is actually being constrained afaics (and it's not the
> one being updated). Perhaps something like
> cs.ContentTypeID=ContentSummaries.ContentTypeID or something like that
> in the where clause?
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: Have you searched our list archives?
>
> http://archives.postgresql.org
>
--
Wei Weng
Network Software Engineer
KenCast Inc.