Row Level Security for INSERT's

Hello there,
I implemented security-policies for the actions SELECT, UPDATE, DELETE and INSERT. All policies work well with exemption to the INSERT-policy. My question is:
How does the dynamic predicate work for INSERT-actions?
As far as I learned, a command like "SELECT ... FROM ..." is extended by a "WHERE " + predicate (from policy). But does this work with INSERT? I mean does something like "INSERT INTO Testtable VALUES(....)" + "WHERE " + predicate work? Am I constructing my predicate wrong or does RLS not work in this case?
Regards
Philipp Pott

Ok, I found the answer myself:
for INSERT's and UPDATE's the "update_check"-option of the DBMS_RLS.ADD_POLICY procedure (see PL/SQL Supplied Packages Reference, 61-5) is applicable. Setting this value to TRUE will let the server run the policy also after the insert.
With running the policy after the insert suddenly my routine worked and now rejects (prohibited) inserts with error ORA-28115 "Policy with check option violation".
Unfortunately this is not mentioned or shown by an example in the Oracle documentation. I found an example in the security-corner (http://otn.oracle.com/sample_code/deploy/security/9i_security.html) and some text in a technical white-paper (http://otn.oracle.com/deploy/security/oracle9iR2/pdf/VPD9ir2twp.pdf).
Huhh, on to the next steps / problems ..
Regards
Philipp

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