From: Richard Huxton <dev@archonet.com>
To: ext-thierry.templier@ccf.com
Cc: pgsql-sql@postgresql.org
Subject: Re: Réf. : Re: [SQL] Left outer join
Date: Thu, 23 Oct 2003 16:35:43 +0100
Message-ID: <200310231635.43348.dev@archonet.com> (raw)
In-Reply-To: <OFB97BBE94.5B90D729-ONC1256DC8.004A9770@prod.fr.hsbc>
References: <OFB97BBE94.5B90D729-ONC1256DC8.004A9770@prod.fr.hsbc>
On Thursday 23 October 2003 14:39, ext-thierry.templier@ccf.com wrote:
> Hello,
>
> It doesn't work...
You don't say how. By the way, please try to reply to the list as well as
directly to the person.
> Have you examples on left outer join on a table that is
> a part of a table? THanks,
richardh=# select * from ta;
a | b
---+-----
1 | aaa
2 | bbb
3 | ccc
(3 rows)
richardh=# select * from tb;
c | d
---+-----
1 | fff
3 | ggg
(2 rows)
richardh=# SELECT a,b,c,d FROM (SELECT a,b FROM ta) AS one LEFT JOIN (SELECT
c,d FROM tb) AS two ON a=c;
a | b | c | d
---+-----+---+-----
1 | aaa | 1 | fff
2 | bbb | |
3 | ccc | 3 | ggg
(3 rows)
--
Richard Huxton
Archonet Ltd
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To: pgsql-sql@postgresql.org
Cc: dev@archonet.com, ext-thierry.templier@ccf.com
Subject: Re: Réf. : Re: [SQL] Left outer join
In-Reply-To: <200310231635.43348.dev@archonet.com>
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