单项选择题

Inwhichofthefollowingscenariosisatablespacerecoveryrequired？（）

A.whenrecoveringalostread-onlytablespacefromaread-onlytablespacebackup
B.whenrecoveringalostread-onlytablespacefromaread-writetablespacebackupwhenthedatabaseisrunninginARCHIVELOGmode
C.whenrecoveringalostread-onlytablespacefromaread-writetablespacebackupwhenthedatabaseisrunninginNOARCHIVELOGmodeandthechangesintheonlineredologfileshavebeenoverwritten
D.whenrecoveringalostread-onlytablespacefromaread-onlytablespacebackupusingthebackupofthecontrolfile，thecontrolfilewascreatedusingtheALTERDATABASEBACKUPCONTROLFILETOTRACEstatement，andthisstatementwasissuedwhenthetablespacewasread-only

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热门试题

单项选择题

Whatisanobsoletebackupset？（）

A.Abackupsetthatismissingoneormorebackupsetpieces
B.Abackupthathasexceededtheretentioncriteriaandisnolongerneeded
C.Abackupsetthatdoesnotincludearchivedredologs
D.Abackupsetthatcannotberecoveredduetocorruption
E.Abackupsetsupercededbyadatafilecopy

单项选择题

YouareworkingasaDatabaseAdministrator.Despite&en

A.Despitehavingapasswordinthedatadictionaryaschange_on_install，youalwayslogontothedatabaseMYNEWDBusingoperatingsystemauthentication.Yourorganizationisplanningtorecruittwojunior-levelDBAs.YoudecidetoenableremoteauthenticationinyourdatabasesothatthenewDBAscanlogontothedatabasefromtheirworkstationstocarryoutadministrativetasks.