From: Ragnar Hafstað <gnari@simnet.is>
To: Henry Ortega <juandelacruz@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: insert only if conditions are met?
Date: Wed, 31 Aug 2005 20:27:58 +0000
Message-ID: <1125520078.2605.38.camel@localhost.localdomain> (raw)
In-Reply-To: <2bffcc33050831094957be1b4a@mail.gmail.com>
References: <2bffcc33050831080942f806e1@mail.gmail.com>
<20050831152534.GA18934@winnie.fuhr.org>
<2bffcc3305083108487fb80cb2@mail.gmail.com>
<2bffcc3305083108497ea6dcc6@mail.gmail.com>
<1125506698.2605.22.camel@localhost.localdomain>
<2bffcc33050831094957be1b4a@mail.gmail.com>
On Wed, 2005-08-31 at 12:49 -0400, Henry Ortega wrote:
> Ok. Here's TABLE A
>
> emp date hours type
> JSMITH 08-15-2005 5 WORK
> JSMITH 08-15-2005 3 WORK
> JSMITH 08-25-2005 6 WORK
>
> I want to insert the ff:
> 1.) JSMITH 08-15-2005 8 VAC
> 2.) DOE 08-16-2005 8 VAC
>
> #1 should fail because there is already 8 hours entered as being
> Worked on 08-15-2005 (same date).
sorry, did not notice the duplicates before my previous reply.
you could do something like
insert into A select 'JSMITH','08-15-2005',8,'VAC'
where
8 != (select sum(hours) FROM A
WHERE emp = 'JSMITH'
AND date = '8-15-2005');
gnari
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To: pgsql-sql@postgresql.org
Cc: gnari@simnet.is, juandelacruz@gmail.com
Subject: Re: insert only if conditions are met?
In-Reply-To: <1125520078.2605.38.camel@localhost.localdomain>
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