From: msi77 <msi77@yandex.ru>
To: JORGE MALDONADO <jorgemal1960@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Query execution based on a condition
Date: Sat, 29 Dec 2012 23:36:56 +0400
Message-ID: <2795691356809816@web15e.yandex.ru> (raw)
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Change the conditions of other 3 queries, so those shall give empty row sets depending on your value.
29.12.2012, 23:06, "JORGE MALDONADO" <jorgemal1960@gmail.com>:
> I have a query similar to the one shown below but, depending on the value of a field, only the first SELECT statement shoud execute and the other 3 should be ignored. Is there a way to achieve this situation?
>
> SELECT fields FROM tblTable WHERE condition
> UNION
>
> SELECT fields FROM tblTable WHERE condition
>
> UNION
>
> SELECT fields FROM tblTable WHERE condition
> UNION
>
> SELECT fields FROM tblTable WHERE condition
>
> Respectfully,
> Jorge Maldonado
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To: pgsql-sql@postgresql.org
Cc: msi77@yandex.ru, jorgemal1960@gmail.com
Subject: Re: Query execution based on a condition
In-Reply-To: <2795691356809816@web15e.yandex.ru>
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