Examine the code: CREATE ROLE readonly IDENTIFIES USING app.chk_readwrite ; CREATE ROLE readwrite IDENTIFIED USING app.chk_readwrite ; CREATE OR REPLACE PROCEDURE app.chk_readwrite AUTHID CURRENT_USER IS ipchk STRING(30); BEGIN IF sys_context(‘USERENV’,’ISDBA’)=’TRUE’ THEN DBMS_SESSION.SET_ROLE‘READWRITE’) ; ELSE DBMS_SESSION.SET_ROLE(‘READONLY’) ; END; / Which three statements correctly describe the Secure Application role definition?()
- ANo user or application has to remember or hide a password.
- BIt prevents everyone except a true DBA session from acquiring the READWRITE role.
- Capp.chk_readwrite is called whenever a user tries to access rows protected by the READONLY or READWRITE label.
- Dapp.chk_readwrite is called by users or applications when they want to enable the READONLY or READWRITE role.