单项选择题

Inasituationwherenomultiplexingofredologstakesplace,whathappenswhenOraclecannotreaddatafromtheonlineredologgroupforarchiving?（）

A.Nothinghappens
B.Oraclewillautomaticallyswitchredologswhendetected
C.Oracleeventuallywon‘tallownewrecordstobeaddedtothedatabase
D.Theinstancecrashes

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热门试题

单项选择题YouareanalyzinghowOracleprocessesuserstatements.SQLandPL／SQLparseinformationisstoredinwhichofthefollowingdatabasememoryareas?（）

A.Librarycache
B.Rowcache
C.Dictionarycache
D.Largearea
E.Buffercache

单项选择题ConsiderthisRMANcommand：RMAN>CONFIGURERETENTIONPOLICYCLEAR；Whatistheeffectofthiscommand？（）

A.Backupswillneverexpire.
B.Itremovesanyretentionpolicy.
C.TheDELETEOBSOLETEcommandwillfailwithanerror.
D.ItsetstheretentionpolicytothedefaultofREDUNDANCY1.