From: Richard Huxton <richardh@archonet.com>
To: Jo <joacn@yahoo.co.uk>
To: pgsql-sql@postgresql.org
Subject: Re: How to write this query!
Date: Mon, 21 Jul 2003 12:46:02 +0100
Message-ID: <200307211246.02554.richardh@archonet.com> (raw)
In-Reply-To: <20030713163222.88233.qmail@web10305.mail.yahoo.com>
References: <20030713163222.88233.qmail@web10305.mail.yahoo.com>
On Sunday 13 July 2003 17:32, Jo wrote:
> These are my PostgreSQL tables:
>
> pid | name
> 1 | A
> 2 | B
> 3 | C
> 4 | D
> 5 | E
>
> tid | pid 1 | pid 2 | pid 3
> 1 | 1 | 2 | 3
>
> Bascially, I would like to write a query to list only
> the names which their "pid" match those pids in the
> other table. If anyone knows, pls help!!
Jo - not sure how your message took this long to reach the list, but it
doesn't look like someone has answered, so...
SELECT DISTINCT a.name FROM table_a AS a, table_b as b WHERE a.pid=b.pid1 OR
a.pid=b.pid2 OR a.pid=b.pid3;
--
Richard Huxton
Archonet Ltd
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To: pgsql-sql@postgresql.org
Cc: richardh@archonet.com, joacn@yahoo.co.uk
Subject: Re: How to write this query!
In-Reply-To: <200307211246.02554.richardh@archonet.com>
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