多项选择题
A. Supplemental log must be enabled
B. Supplemental log must be enabled for the primary key
C. Undo retention guarantee for the database must be configured
D. ”EXECUTE “ permission on the DBMS_FLASHBACK package must be granted to the user
单项选择题 Examine the following PL/SQL block： SET SERVEROUTPUT ON SET LONG 10000 ECLARE report clob； BEGIN report ：= DBMS_SPM.EVOLVE_SQL_PLAN_BASELINE（）； DBMS_OUTPUT.PUT_LINE（report）； END； Which statement describes the effect of the execution of the above PL/SQL block？（）
多项选择题 Whichoperationrequiresthatyoucreateanauxiliaryinstancemanuallybeforeexecutingtheoperation？（）
多项选择题 Whenyoureperformingatablespacepoint-in-timerecovery，whichtablespaceswillalwaysberestoredtotheauxiliaryinstance？（）