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Date: Wed, 31 Aug 2005 09:25:34 -0600
From: Michael Fuhr <mike@fuhr.org>
To: Henry Ortega <juandelacruz@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: insert only if conditions are met?
Message-ID: <20050831152534.GA18934@winnie.fuhr.org>
References: <2bffcc33050831080942f806e1@mail.gmail.com>
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On Wed, Aug 31, 2005 at 11:09:54AM -0400, Henry Ortega wrote:
> Is there a way to insert a record only if a certain
> condition is met?
> 
> Something like:
> insert into employee values('lastname','firstname',8) where
> (condition here.. select sum(ofsomething) from xx where sum(ofsomething)>0 )

See the INSERT documentation; it mentions inserting values from a subquery.

INSERT INTO employee
SELECT 'lastname', 'firstname', 8
WHERE <condition>;

-- 
Michael Fuhr