多项选择题
A.SHOW L1
B.SPAWN L1
C.STATUS L1
D.SERVICES L1
E.STATUS LISTENER
F.SERVICES LISTENER
G.SHOWcurrent_listener
单项选择题 YouworkasadatabaseadministratorforSupportcenter.cn.YouareusingRecoveryManager(RMAN)forbackupandrecoveryofyourdatabase.YouexecutedthedeletecommandinRMANtodeleteabackupofatablespace.Whichstatementistrueinthisscenario?()
多项选择题 YouworkasadatabaseadministratorforSupportcenter.cn.Oneofthedatabaseusersaccidentallydeletedalltherowsofacriticaltableandcommittedthedeleteat1:30p.m.Youseniordatabaseadministrator,SupportCenter,asksyoutoretrievethelostdata.Whichtwoactionswouldyouusetoensurethatthereisnoimpactonotherconnecteduserswhileretrievingthedeletedrows?()
单项选择题 You work as a database administrator for Supportcenter.cn. When you tried to connect to the database, you received the following error: ERROR: ORA-12541:TNS:no_listener You found that the listener is not running on the server, so you issued the following command in the Listener Control utility to start the listener. lsnrctl>START What statement is true?()