多项选择题
A. Advising on block checksum failures
B. Advising on inaccessible control files
C. Advising on inaccessible block change tracking files
D. Advising on empty password files
E. Advising on invalid block header field values
单项选择题 What is the result of executing a TRUNCATE TABLE command on a table that has Flashback Archivingenabled?（）
多项选择题 A redaction policy was added to the SAL column of the SCOTT.EMP table: All users have their default set of system privileges. For which three situations will data not be redacted?（）
多项选择题 You enabled an audit policy by issuing the following statements: SQL> AUDIT POLICY ORA_DATABASE_PARAMETER BY SCOTT; SQL> AUDIT POLICY ORA_DATABASE_PARAMETER BY SYS, SYSTEM; For which database users and for which executions is the audit policy now active? （）