DBMS_ASSERT can be used to prevent PL/SQL injection. In certain cases it can
be bypassed. This is documented in a paper I wrote in July 2008 but am only
publishing now:
http://www.databasesecurity.com/oracle/Bypassing-DBMS_ASSERT.pdf
Cheers,
David Litchfield
NGSSoftware Ltd
http://www.ngssoftware.com/
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