Re: return data before the update

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От Luis Silva
Тема Re: return data before the update
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Msg-id COL108-W61269DD2AFF204E7755381B56E0@phx.gbl
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Ответ на Re: return data before the update  (Andreas Kretschmer <akretschmer@spamfence.net>)
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Thanks for the quick replay.
I wanted to return it when doing the update query.

> Date: Sat, 9 Jan 2010 07:47:32 +0100
> From: akretschmer@spamfence.net
> To: pgsql-novice@postgresql.org
> Subject: Re: [NOVICE] return data before the update
>
> Luis Silva <lfs12@hotmail.com> wrote:
>
> > Hi all,
> > Is it possible to perform an update and return the old data, i.e., the data
> > updated? Do I need a store procedure?
>
> What do you want to do with the old data? Store i a other table (like a
> log-table)?
>
> I think, you needs a TRIGGER, and the TRIGGER has to store the old
> values in your log-table.
>
> Do you know tablelog?
> http://andreas.scherbaum.la/blog/archives/100-Log-Table-Changes-in-PostgreSQL-with-tablelog.html
>
>
> Andreas
> --
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