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  Oracle Tips by Burleson

Chapter 10 Oracle Grants Auditing

dbms_fga.add_policy (
      object_schema=>'CLAIM_SCHEMA',
      object_name=>'CLAIMS',
      policy_name=>'LARGE_CLAIM'
  );
end;

This statement creates an FGA policy named LARGE_CLAIM on the table claims. Note this policy is different from the policy defined in Virtual Private Database (VPD). Even though both are called policies, VPD policies restrict the rows visible to the users whereas FGA policies define how the select statements are recorded. They are very different concepts.

Another important thing to note here is, as of Oracle 9i, the FGA policies define how the auditing is done for SELECT statements only, not for other statements. However, that is hardly a problem, since the audit trails of other transactional statements like INSERT, UPDATE and DELETE can be captured using triggers.

After this statement is executed, any select statement on the claims table is audited. For instance, if JUDY selects from this table as:

select * from claim_schema.claims;

The operation is audited. The audit records can be seen by issuing:

select db_user, os_user, policy_name,
to_char(timestamp,'mm/dd/yyyy hh24:mi:ss'),
sql_text


The above text is an excerpt from:

Oracle Privacy Security Auditing

The Final Word on Oracle Security

 

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