Re: Inc

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/
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