What are you actually trying to test with dbms_repair? It will report the errors like dbv along with errors from the buffer = cache checking. =20 -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx = [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Peter Dixon Sent: Monday, April 18, 2005 4:10 AM To: oracle-l@xxxxxxxxxxxxx Subject: Data corruption I am wanting to test dbs_repair , but I need to corrupt a block within = my=20 test database. Anybody know how to do it? -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l