Re: INSERT only under certain conditions (SELECT)

From: "Rajesh Kumar Mallah(dot)" <mallah(at)trade-india(dot)com>
To: Joachim Trinkwitz <jtr(at)uni-bonn(dot)de>, pgsql-sql(at)postgresql(dot)org
Subject: Re: INSERT only under certain conditions (SELECT)
Date: 2002-07-08 08:12:39
Message-ID: 200207081342.39151.mallah@trade-india.com
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create an uniq index on the columns,

# create unique index index_name on table (col1,col2,col3,...)

hope it helps.

regds
mallah

On Monday 08 July 2002 06:48, Joachim Trinkwitz wrote:
> Hi,
>
> I want to insert a row only under condition that there isn't already
> another row with similar values -- something like a INSERT INTO
> ... WHERE NOT EXISTS (SELECT ...)?
>
> Hoping for help,
> joachim
>
>
>
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--
Rajesh Kumar Mallah,
Project Manager (Development)
Infocom Network Limited, New Delhi
phone: +91(11)6152172 (221) (L) ,9811255597 (M)

Visit http://www.trade-india.com ,
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