I guess that VPD rely somewhere on Fine Grain Control. I missed the link between FGAC and VPD but It is everything but simple. I still have the joy to discover the pleasure to tune a query with hidden predicates. Must be fun. bp _____ From: Ghassan Salem [mailto:salem.ghassan@xxxxxxxxx] Sent: Monday, 16 October, 2006 12:57 PM To: VIVEK_SHARMA@xxxxxxxxxxx Cc: oracle-l@xxxxxxxxxxxxx Subject: Re: Puzzle - Hiding Data of some rows in a Table Vivek, for puzzle 1, you could use VPD, it can do what you want, For Puzzle 2, look at Database Vault (available for 10.2 only). It allows you to forbid DBA from looking into data. rgds On 10/16/06, VIVEK_SHARMA <VIVEK_SHARMA@xxxxxxxxxxx> wrote: Folks Puzzle 1 - For a Banking Application, for certain V.I.P. Accounts (translating to respective rows in a set of Tables), the general Staff should NOT be able to View the respective Account info. But Bank-wide summation reports fired by the same staff should consider the Data from the VIP Accounts too. Puzzle 2 Additionally DBAs also should also NOT be able to see the above data. Any ideas how this can be achieved? Qs Does Row based Encryption perchance exist in 10.2? If so, is it a possible solution? If so, does it have performance overheads? Thanks indeed **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS***