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Fw: Null and Not Null

From: <davidb(at)vectormath(dot)com>
To: <pgsql-novice(at)postgresql(dot)org>
Subject: Fw: Null and Not Null
Date: 2000-12-26 16:55:28
Message-ID: 007901c06f5c$a88f1e80$0402010a@Vectormath (view raw or flat)
Thread:
Lists: pgsql-novice
Immediately after sending this I realized that through a very unfortunate
coincidence this message could be read as containing rather sarcastic humor.
It was not intended.

David Boerwinkle
----- Original Message -----
From: <davidb(at)vectormath(dot)com>
To: Mike Hammonds <mhammonds(at)knowledgeinenergy(dot)com>;
<pgsql-novice(at)postgresql(dot)org>
Sent: Tuesday, December 26, 2000 10:51 AM
Subject: Re: [NOVICE] Null and Not Null


> Hi Mike,
>
> Your question is sort of broad.  Could you be more specific?
>
> However, a general reply to your broad question (and a source of confusion
> for many people) is that Null does not mean "empty", rather it means
> "undefined" (as in "the answer to a poorly formed question") -- which is
why
> Null = Null is false.
>
> Thanks,
> David Boerwinkle
>
> ----- Original Message -----
> From: Mike Hammonds <mhammonds(at)knowledgeinenergy(dot)com>
> To: <pgsql-novice(at)postgresql(dot)org>
> Sent: Tuesday, December 26, 2000 9:43 AM
> Subject: [NOVICE] Null and Not Null
>
>
> ** Reply Requested When Convenient **
>
> Can some one please help me understand Null and Not Null
>
> Thanks
>
> Mike Hammonds, CNE5, MCP-NT
> Fellon-McCord & Associates, Inc.
> Office:  502.214-6324
> Fax:      502.426.8800
> mhammonds(at)knowledgeinenergy(dot)com
> Show Me the Code!!
>
>
>


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Subject: Re: Null and Not Null

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