From: Ezequias Rodrigues da Rocha <ezequias.rocha@gmail.com>
To: Richard Huxton <dev@archonet.com>
Cc: PostgreSQL <pgsql-sql@postgresql.org>
Subject: Re: Inc
Date: Tue, 6 Mar 2007 14:29:03 -0300
Message-ID: <55c095e90703060929w745cd560g12426c986b75e430@mail.gmail.com> (raw)
In-Reply-To: <45EDA139.6070103@archonet.com>
References: <55c095e90703060855o228c0d0bm4b021826e3899ba5@mail.gmail.com>
<45EDA139.6070103@archonet.com>
Thank you but I must inc an specific row. How to do that ?
Ezequias
2007/3/6, Richard Huxton <dev@archonet.com>:
> Ezequias Rodrigues da Rocha wrote:
> > Hi list,
> >
> > There is any function to increment with 1 some field.
> >
> > For example. I have a table with a field that on each update it
> > incrementes a field that is allways configured to 0 before the
> > starting of updates.
>
> Something like:
>
> CREATE FUNCTION my_autoinc() RETURNS TRIGGER AS $$
> BEGIN
> NEW.counter := NEW.counter + 1;
> RETURN NEW;
> END;
> $$ LANGUAGE plpgsql;
>
> CREATE TRIGGER my_counter_trig BEFORE UPDATE ON my_table
> FOR EACH ROW EXECUTE PROCEDURE my_autoinc();
>
> --
> Richard Huxton
> Archonet Ltd
>
--
Ezequias Rodrigues da Rocha
http://ezequiasrocha.blogspot.com/
use Mozilla Firefox:http://br.mozdev.org/firefox/
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To: pgsql-sql@postgresql.org
Cc: ezequias.rocha@gmail.com, dev@archonet.com
Subject: Re: Inc
In-Reply-To: <55c095e90703060929w745cd560g12426c986b75e430@mail.gmail.com>
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