RE: VPD with column masking

  • From: "Kenneth Naim" <kennaim@xxxxxxxxx>
  • To: <cemail_219@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Tue, 20 Oct 2009 12:09:49 -0400

Yes it can be done. The function will be run by every user selecting from
the table, so execute on the function should be granted to public. Within
the function you can check for a list of hard coded users, or have it lookup
the data in a table (which should be protected against changes using fga) or
you can use a db role that can be granted to users, and check






From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of J. Dex
Sent: Tuesday, October 20, 2009 11:10 AM
To: oracle-l@xxxxxxxxxxxxx
Subject: VPD with column masking


Using VPD with column masking, is it possible to set up a function/policy so
it only applies to a small percentage of the users in the database?   
I have a main schema with all the tables under that schema.  I want a few of
the users (not everyone) to only be able to look at some of the data that
resides in those tables under that main schema.   Is it possible to apply a
function and policy to work that way?   What is the best way to do that?


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