From: | "Robins Tharakan" <tharakan(at)gmail(dot)com> |
---|---|
To: | "Harald Fuchs" <hari(dot)fuchs(at)googlemail(dot)com> |
Cc: | pgsql-sql(at)postgresql(dot)org |
Subject: | Re: Add a ROWCOUNT to the output of a select. |
Date: | 2008-05-14 10:01:54 |
Message-ID: | 36af4bed0805140301i3360c9fbw1a5238dc283161f9@mail.gmail.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
Oops!
Of course, I meant a sequence.
*Robins*
On Wed, May 14, 2008 at 2:10 PM, Harald Fuchs <hari(dot)fuchs(at)googlemail(dot)com>
wrote:
> In article <36af4bed0805131818p147bb440oa4c1944939e3b313(at)mail(dot)gmail(dot)com>,
> "Robins Tharakan" <tharakan(at)gmail(dot)com> writes:
>
> > While we could always check for the query performance reasons, I
> > rather think that this is an overkill for the purpose of mere line
> > numbers.
>
> > If such queries don't change frequently, you could be better off
> > using a simple function that instead adds a 'rownumber' field to the
> > output of the inner SQL query. The 'rownumber' could instead be
> > calculated by simply incrementing it within a FOR loop for each row.
>
> I think a sequence is much simpler:
>
> create temp sequence tmp;
> select nextval('tmp') as rownum,
> contactdate
> from
> myTable
> where
> contactdate > '2007-06-30 23:59:59'
> order by
> contactdate;
>
>
> --
> Sent via pgsql-sql mailing list (pgsql-sql(at)postgresql(dot)org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-sql
>
From | Date | Subject | |
---|---|---|---|
Next Message | Peter Koczan | 2008-05-14 15:46:09 | Re: Auto-formatting timestamps? |
Previous Message | Marcin Stępnicki | 2008-05-14 08:48:34 | Re: Add a ROWCOUNT to the output of a select. |