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Date: Fri, 19 Dec 2003 09:16:34 -0700
From: Guy Fraser <guy@incentre.net>
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To: pgsql-sql@postgresql.org
Subject: Re: testing for null value in integer field?
References: <3FE32231.5030207@3times25.net>
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select .....  where intnumber IS NULL

Geoffrey wrote:

> How does one check for an unset value in an integer field?
>
> I've tried such things as:
>
> select ..... where intnumber = ''
> select ...... where intnumber =  ?
> select .....  where intnumber = NULL
>
> Thanks.
>