> Can "b" be null in any of these tables? If not, then you can
> rewrite your query to us NOT EXISTS and have the same semantics.
> That will often be much faster.
Thanks, Kevin.
No NULLs. It looks like it's a good deal slower than the LOJ version,
but a good deal faster than the original. Since the equivalence of
semantics is much easier to verify here, we may go with this (at least
for the moment).
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Maciek Sakrejda | System Architect | Truviso
1065 E. Hillsdale Blvd., Suite 230
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