From: | "Grigoriy G(dot) Vovk" <grigoriy(dot)vovk(at)linustech(dot)com(dot)cy> |
---|---|
To: | Mark Mikulec <mm98au(at)badger(dot)ac(dot)brocku(dot)ca> |
Cc: | <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: Sequential select queries...?? |
Date: | 2001-08-20 17:43:17 |
Message-ID: | 20010820203847.Y556-100000@callisto.internal.linustech.com.cy |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
I don't knoe, may be I don't understand the question, but for me its
looking like UNION statement. For example:
select id from T where name='bleh'
UNION
select id from T where description='bleh';
Aug 14, 20:40 -0400, Mark Mikulec wrote:
> Hello,
>
> At first I thought what I was trying to do was simple and could be done
> easily - but alas, I've spent way too much time and could not figure out
> how to get the results in question.
>
> Let's say I have a table T comprised of id of type integer, name and
> description both of type text.
>
> What i'd like to do is the following:
>
> Select id from T where name = 'bleh';
>
> and
>
> Select id from T where description = 'bleh';
>
> and result both results in the same result set. That is, duplicate id's
> if they appear. So then I could do a GROUP BY and a COUNT to see how
> many appeared in only one, and how many appeared in both.
>
> Could someone help me? I've tried countless different sql queries, can't
> seem to get one to work. If I can just get those duplicate id's in the
> query.. then I'd be laughing and then I can complete my task.
>
> Thanks in advance,
>
> Mark
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>
my best regards,
----------------
Grigoriy G. Vovk
From | Date | Subject | |
---|---|---|---|
Next Message | Robert J. Sanford, Jr. | 2001-08-20 17:51:48 | RE: user defined function question |
Previous Message | Jeff Eckermann | 2001-08-20 17:28:34 | Re: Sequential select queries...?? |