单项选择题
A.EXECUTE_CATALOG_ROLE
B.CONNECT
C.RESOURCE
D.RECOVERY_CATALOG_OWNER
E.RECOVERY_CATALOG_USER
单项选择题 WhichofthefollowingfilescannotbecatalogedusingtheCATALOGcommand？（）
单项选择题 Toperformadatabasepoint-in-timerecoveryusingRMAN，afterdatabaserestoration，youmustensurethatthedatabaseisinwhichofthefollowingstates？（）
单项选择题 Using the command shown here， what time format must you specify to recover the database until a point-in-time？（） SQL> RECOVER DATABASE UNTIL TIME ’<time format>’；