From: A. Kretschmer <andreas.kretschmer@schollglas.com>
To: pgsql-performance@postgresql.org
Subject: Re: How to SELECT
Date: Thu, 11 Mar 2010 08:14:17 +0100
Message-ID: <20100311071417.GB1035@a-kretschmer.de> (raw)
In-Reply-To: <2a77004c1003102256l24af41e5ueab35874f5320ffa@mail.gmail.com>
References: <2a77004c1003102256l24af41e5ueab35874f5320ffa@mail.gmail.com>
In response to Angayarkanni :
> Hi,
>
> I am the beginner of pgpsql
>
>
> I need to select from two tables say T1,T2 by UNION
>
> when the value is from T1 the output should by a 1 and
> when the value from T2 the out put should be 2
>
> when T1 Hits values should be 1 and when T2 hits the value should be 2
select 'table 1' as table, * from t1 union all select 'table 2', * from t2;
Regards, Andreas
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Andreas Kretschmer
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To: pgsql-performance@postgresql.org
Cc: andreas.kretschmer@schollglas.com
Subject: Re: How to SELECT
In-Reply-To: <20100311071417.GB1035@a-kretschmer.de>
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