Re: default values - Mailing list pgsql-jdbc

From Daniel Serodio
Subject Re: default values
Date
Msg-id 1037707940.30894.30.camel@kelly
Whole thread Raw
In response to Re: default values  (Felipe Schnack <felipes@ritterdosreis.br>)
Responses Re: default values  (Felipe Schnack <felipes@ritterdosreis.br>)
List pgsql-jdbc
You can pick which column gets the default value by omitting the
appropriate field from the INSERT command.

eg:

CREATE TABLE test (a int default 0, b text default 'foo');
INSERT INTO test (a) VALUES (10); -- b gets default value
INSERT INTO test (b) VALUES ('bar'); -- a gets default value

On Mon, 2002-11-18 at 18:49, Felipe Schnack wrote:
>   Yes, and you're not wrong (but I don't consider it right too)
>
>   1- As I said, my reasons to want that are laziness :-)
>   Why? Because I store my inserts in an separated, XML file, so I can't
> build sql commands on the fly, adding parameters as required, as many
> people do. So, as I am lazy, I want to use the same insert command, but
> specify that a specific column should get its default value. Is much
> easier than edit a separated file, etc, etc
>
>   2- This feature is avaliable in pgsql. Why not implement it?
>
> On Mon, 2002-11-18 at 17:16, Stuart Robinson wrote:
> > Hi, Felipe.
> >
> > I'm been trying to follow the discussion about default values and I'm a little
> > confused. I think David's reply is sensible. Unless I'm missing something, I
> > don't think there's an issue for inserts. All you have to do is not specify the
> > default column in the insert and it will automatically get the default value. I
> > think the issue only arises when you do updates, if you want to revert to the
> > default for a column that has been changed since it was originally inserted.
> >
> > Ate mais,
> > Stuart
> >
> > Quoting David Wall <David.Wall@Yozons.com>:
> >
> > > Why not simply remove varcharfield2 from the INSERT statement and let the
> > > database insert that value with the default value?  Isn't the purpose of a
> > > default value to have the DB put that value in when none is specified?
> >
> > --
> > Stuart Robinson <stuart@zapata.org>
> >
> >
> > -------------------------------------------------
> > This mail sent through IMP: http://horde.org/imp/
> --
>
> Felipe Schnack
> Analista de Sistemas
> felipes@ritterdosreis.br
> Cel.: (51)91287530
> Linux Counter #281893
>
> Faculdade Ritter dos Reis
> www.ritterdosreis.br
> felipes@ritterdosreis.br
> Fone/Fax.: (51)32303328
>
>
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--
[]'s
Daniel Serodio


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