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From: Albrecht Berger <berger1517@gmx.ch>
To: pgsql <pgsql-sql@postgresql.org>
Subject: replace null with 0 in subselect ?
Date: Wed, 16 Oct 2002 12:07:59 +0200
Message-ID: <05f001c274fb$e8a5aba0$a07ba8c0@wxp> (raw)

Hello,
I have a statement like this :

INSERT INTO tab1 (c1, c2, c3) VALUES (1,2, SELECT MAX(pos)+1 FROM tab2);

This works fine if the subselect returns a value, but if it returns
null there is a problem. In this case a 0 has to be inserted.
Is there any pg function which solves this problem ?
I know that oracle has a function but I didn't find
something similar in pg.

Thanks
berger





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