WhichfouraretrueregardingtheWorkspaceManagerinOracle9i？（）
Automaticallyversionsalltables.
B. AutomaticallyinstalledwithOracle9i.
C. Mergeschangeswithparentrowsordiscardchanges.
D. Providesmechanismtoidentifyandresolveconflicts.
E. Allowsforversionenablingtablesbyuseofapackagesprocedure.
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Theclientconnectedtothedatabaseturnsoffhisorhermachinewithoutexitingfromaconnectiontothedatabase.Whichtypeoffailureisthis？（）
A. media
B. instance
C. statement
D. userprocess
YouexecutethiscommandinMOUNTmode：ALTERDATABASEARCHIVELOG；WhereistheinformationthatthedatabaseisnowinARCHIVELOGmodestored？（）
A. SPFILE
B. archivelog
C. controlfile
D. systemtablespace
WhenperformingincompleterecoveryusingUNTILSEQUENCEwithRMAN，whichtwopiecesofinformationarerequired？（）
A. Threadnumber.
B. LogSequencenumber.
Controlfilesequencenumber.
D. Nameofthelastarchivedlog.
Onlineindexrebuildfunctionalityhasbeenextendedtoincludewhichfourindexstructures？（）
A. Bitmapindexes.
B. Reversekeyindexes.
C. Function-basedindexes.
D. Key-compressedindexesonregulartables.
E. Key-compressedindexesonIOT（includingsecondaryindexes）
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