Re: RE: Help with query. (*)

Mike,
In that case, you want to use this construction:

DELETE FROM a 
WHERE EXISTS ( SELECT 1 FROM bWHERE b.1 = a.1  AND b.2 = a.2  AND b.3 = a.3 );

Of course, a good primary keying system would make this somewhat less
complex ...
                -Josh Berkus
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