Look at http://www.comptechnews.com/~reaster/dbdesign.html#three-valued-logic
Might be helpful.
On Tuesday 26 December 2000 10:43, Mike Hammonds wrote:
> > ** 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@knowledgeinenergy.com
> Show Me the Code!!
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