Sven K�hler wrote:
SELECT TRUE FROM dual WHERE NOT 1 <> NULL -> false (!)


This is strange, and this looks like a bug to me because the NOT should invert the result of 1<>NULL which is in fact false - and NOT false is true ;-)
The dreaded three valued logic monster rears it's head again:
1 <> NULL => NULL
NOT NULL => NULL

Daniel Dittmar

--
Daniel Dittmar
SAP DB, SAP Labs Berlin
[EMAIL PROTECTED]
http://www.sapdb.org



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