From: Andreas Kretschmer <akretschmer@despammed.com>
To: pgsql-sql@postgresql.org
Subject: Re: [despammed] Query two database at once
Date: Mon, 2 May 2005 19:51:41 +0200
Message-ID: <20050502175141.GP5962@webserv.wug-glas.de> (raw)
In-Reply-To: <427648E5.6080306@cerene.fr>
References: <427648E5.6080306@cerene.fr>
am 02.05.2005, um 17:36:05 +0200 mailte Stéphane RIFF folgendes:
> Hi,
>
> I want to ewecute a query on two database like this :
>
> SELECT * FROM table01 T1, table02 T2 WHERE T1.gid=T2.gid AND
> T2.my_field='".$value."'
>
> The problem is that table01 is in a different database than table02 and i
> don't know how to telle postgresql
> to look in two db.
> Is there a solution other than execute two query ?
The answer is: yes and no.
No: PG can't connect to two databases and do a select across.
Yes: take a look at the contrib on dblink.
You should look in the archiv of the list, Tom Lane and other people
described the way with dblink in the past.
Andreas
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To: pgsql-sql@postgresql.org
Cc: akretschmer@despammed.com
Subject: Re: [despammed] Query two database at once
In-Reply-To: <20050502175141.GP5962@webserv.wug-glas.de>
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