Good points Chris. Just to clarify a bit - I would add that only ANALYZE TABLE *with* VALIDATE STRUCTURE *and* CASCADE clauses will perform the checking you describe. At least that is my understanding. Regards, Brandon > -----Original Message----- > [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Christian > Antognini > Result is that only ANALYZE detects such situations. Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it. -- //www.freelists.org/webpage/oracle-l