From: Geoffrey <esoteric@3times25.net>
To: pgsql-sql@postgresql.org
Subject: Re: testing for null value in integer field?
Date: Fri, 19 Dec 2003 11:22:21 -0500
Message-ID: <3FE325BD.1040507@3times25.net> (raw)
In-Reply-To: <3FE32368.30303@kencast.com>
References: <3FE32231.5030207@3times25.net>
<3FE32368.30303@kencast.com>
Wei Weng wrote:
> 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.
>>
> It is actually WHERE intnumber IS NULL. You don't use operator = to
> compare with NULLs, you use IS.
Thank you muchly....
--
Until later, Geoffrey esoteric@3times25.net
Building secure systems inspite of Microsoft
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To: pgsql-sql@postgresql.org
Cc: esoteric@3times25.net
Subject: Re: testing for null value in integer field?
In-Reply-To: <3FE325BD.1040507@3times25.net>
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