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From: Poet/Joshua Drake <poet@linuxports.com>
To: Algirdas ©akmanas <asakmanas@grafton.lt>
Cc: pgsql-sql@postgresql.org
Subject: Re: outer joins
Date: Wed, 4 Apr 2001 07:49:06 -0700 (PDT)
Message-ID: <Pine.LNX.4.30.0104040748550.17698-100000@crazypenguins.commandprompt.com> (raw)
In-Reply-To: <NFBBJHKIMLJDMKFOHEPEEECFCAAA.asakmanas@grafton.lt>

Hello,

I believe these are supported in 7.1


On Wed, 4 Apr 2001, [iso-8859-4] Algirdas ©akmanas wrote:

>Hi all,
>
>I'm new to postgre, I've changed my work and consequently now i'm moving
>from MS plaform.
>In MS SQL there are such constructs left or right outer join, in postgres
>there are no such thing
>
>Can You offer me strategy to make query that selects from table (a) and
>joins to it another (b)
>on e.g. a.id=b.aid but joins so that in case there is no value in table b
>NULL is left in result:
>in MS SQL i've used query:
>
>select a.id, b.name from a left outer join b on a.id=b.aid
>
>table a          table b
>
>id |             aid | name
>-----------      ----------------
>1                1   | Tom
>2                3   | Sam
>
>result:
>a.id  |  b.name
>---------------------
>1     | Tom
>2     | NULL
>
>thank you in advance
>
>Algirdas ©akmanas
>IT manager
>+370 99 90369
>asakmanas@grafton.lt
>Grafton Entertainment
>http://www.tvnet.lt
>
>
>
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