> Fran Fabrizio <ffabrizio(at)mmrd(dot)com> writes:
> > Can someone smarter than me tell me what I am missing?
> Comparisons involving NULL yield NULL. Any book on SQL should
> explain this ...
...except 'select null=null' doesn't follow this rule (it yields 'true')
can understand my confusion. Thanks to Thomas for the explanation
and history of this interesting quirk.
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