From: Andreas Kretschmer <akretschmer@spamfence.net>
To: pgsql-sql@postgresql.org
Subject: Re: Inc
Date: Tue, 6 Mar 2007 18:46:49 +0100
Message-ID: <20070306174648.GA7677@KanotixBox> (raw)
In-Reply-To: <55c095e90703060929w745cd560g12426c986b75e430@mail.gmail.com>
References: <55c095e90703060855o228c0d0bm4b021826e3899ba5@mail.gmail.com>
<45EDA139.6070103@archonet.com>
<55c095e90703060929w745cd560g12426c986b75e430@mail.gmail.com>
Ezequias Rodrigues da Rocha <ezequias.rocha@gmail.com> schrieb:
> Thank you but I must inc an specific row. How to do that ?
Read the answer again.
Please, no silly TOFU (german synonym for text above, fullquote below).
> >> 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();
Your task is only to adapt this to your table-design.
Andreas
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknow)
Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
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To: pgsql-sql@postgresql.org
Cc: akretschmer@spamfence.net
Subject: Re: Inc
In-Reply-To: <20070306174648.GA7677@KanotixBox>
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