the logic is the same...it's just the test condition that changes:
don't think you wan t not exists...you want to confirm that there is at least one row on TableC that is not in tableB:
IF EXISTS (SELECT 1 FROM TableC LEFT OUTER JOIN ON TABLEC.ID = TABLEB.ID WHERE TableC.fieldname = 'Y' and TableB.fieldname is null)
Lowell
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