单项选择题
A.no profiles
B.the default profile
C.same as the profile of SYS user
D.same as the profile of SYSTEM user
单项选择题 You are connecting to an Oracle database server from a client by using the following connect string: SQL> CONNECT hr/hr@pdserver.us.oracle.com:1521/proddb Which naming method is being used in this case?()
单项选择题 YouworkasadatabaseadministratorforSupportcenter.cn.Youreceivedthefollowingerrorwhileworkingonyourdatabase:ORA-01555:snapshottooold,Inwhichsituationwouldyoureceivesuchanerror?()
单项选择题 YouworkasadatabaseadministratorforSupportcenter.cn.Youaddedatablespacetoyourdatabase.Becauseofthechangestothephysicalstructureofyourdatabase,youperformedabackupofthecontrolfiletotrace.Afterthis,youlostonlythecontrolfilesandtheinstanceabortedduetoahardwarefailure.Howwouldyouproceedtorecoverthedatabase?()