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Re: SQL( "if ...exists...),how to do it in the PostgreSQL?

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Eric <e-lz(at)263(dot)net>
Cc: <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: SQL( "if ...exists...),how to do it in the PostgreSQL?
Date: 2001-06-06 14:48:34
Message-ID: Pine.LNX.4.30.0106061648090.757-100000@peter.localdomain (view raw or flat)
Thread:
Lists: pgsql-hackers
Eric writes:

>    I can realize this function in the SYBase,but How can i do it in the PostgreSQL?
>
> /****SQL***/
> if not exists(select id from test) insert into test(id) values (280);
> /*********/

Write a function in PL/pgSQL.

-- 
Peter Eisentraut   peter_e(at)gmx(dot)net   http://funkturm.homeip.net/~peter


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