Re: Populating using Select

Thank you very much Andrew. Now I learned.

Best regards
>From Brazil
Ezequias R. da Rocha

2006/9/26, Andrew Sullivan <ajs(at)crankycanuck(dot)ca>:
>
> On Tue, Sep 26, 2006 at 09:35:18AM -0300, Ezequias Rodrigues da Rocha
> wrote:
> > I was trying to make something like this:
> >
> > Insert into base.neigborhood values (nextval(), Select distinct name
> from
> > base.clients).
>
> Not quite.
>
> INSERT INTO base.neighborhood (column list)
> SELECT nextval('sequence name'),
> name
> FROM base.clients
> GROUP BY name;
>
> Note that this will give you a different number for each of the
> names. If what you want is for them all to have the same number,
> then perform the nextval and then call currval() on the sequence.
>
> By the way, this is a pretty common use of SQL (inserting into one
> table the results of a select from another). If you thought this
> wouldn't work, you maybe need a little more SQL practice than you
> think you do. Any of the excellent PostgreSQL books out there should
> cover this much. Alternatively, the standard SQL introductions would
> get you there.
>
> A
>
> --
> Andrew Sullivan | ajs(at)crankycanuck(dot)ca
> In the future this spectacle of the middle classes shocking the avant-
> garde will probably become the textbook definition of Postmodernism.
> --Brad Holland
>
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--
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Atenciosamente (Sincerely)
Ezequias Rodrigues da Rocha
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A pior das democracias ainda é melhor do que a melhor das ditaduras
The worst of democracies is still better than the better of dictatorships
http://ezequiasrocha.blogspot.com/