单项选择题
Youdiscoveranout-of-spaceconditioninthedatabase.Youdecidetosuspendasessionforfiveminutes.Youissuethefollowingcommandtosuspendthesession:ALTERSESSIONENABLERESUMABLE;Whichcommandcouldyouissuetoenabletheresumablespaceallocationfeatureatthesessionlevel?()
A.ALTERSESSIONENABLERESUMABLE_TIMEOUT=5;
B.ALTERSYSTEMENABLERESUMABLE_TIMEOUT=5;
C.ALTERSESSIONENABLERESUMABLE_TIMEOUT=300;
D.ALTERSYSTEMENABLERESUMABLETIMEOUT=300;
- A.Youdecidetosuspendasessionforfiveminutes.Youissuethefollowingcommandtosuspendthesession:ALTERSESSIONENABLERESUMABLE;Whichcommandcouldyouissuetoenabletheresumablespaceallocationfeatureatthesessionlevel?()
A.ALTERSESSIONENABLERESUMABLE_TIMEOUT=5;
B.ALTERSYSTEMENABLERESUMABLE_TIMEOUT=5;
C.ALTERSESSIONENABLERESUMABLE_TIMEOUT=300;
D.ALTERSYSTEMENABLERESUMABLETIMEOUT=300;
相关考题
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单项选择题
YoucreatedtheDEPTtablebyusingthefollowingcommand:CREATETABLEscott.dept(deptnoNUMBER(3),dnameVARCHAR2(15),locVARCHAR2(15))STORAGE(INITIAL100KNEXT50KMAXEXTENTS10PCTINCREASE5FREELISTGROUPS6FREELISTS4);YouarerequiredtoshrinktheDEPTtable.Whileperformingtheshrinkoperation,youwanttoensurethattherecoveredspaceisreturnedtothetablespaceinwhichtheDEPTtableisstored.YoudonotwanttoshrinktheindexescreatedontheDEPTtable.WhatwillyoudotoshrinktheSCOTT.EMPtable?()
A.dept
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单项选择题
Yourdatabaseisfunctionalwithpeakloadforonehour.Youwanttopreservetheperformancestatisticscollectedduringthisperiodsothattheycanbeusedforcomparisonwhileanalyzingtheperformanceofthedatabaseinthefuture.Whatactionwouldyoutaketoachievethistask?()A.SettheSTATISTICS_LEVELinitializationparametertoALL.B.Createabaselineonapairofsnapshotsthathavethestatisticsofthepeak-loadperiodinthedatabase.C.DecreasethesnapshotintervalintheAWRtocollectmorenumberofsnapshotsduringthepeak-loadperiod.D.SetthesnapshotretentionperiodintheAutomaticWorkloadRepository(AWR)tozerotoavoidtheautomaticpurgingofthesnapshots.
A.Youwanttopreservetheperformancestatisticscollectedduringthisperiodsothattheycanbeusedforcomparisonwhileanalyzingtheperformanceofthedatabaseinthefuture.Whatactionwouldyoutaketoachievethistask?()
A.SettheSTATISTICS_LEVELinitializationparametertoALL.
B.Createabaselineonapairofsnapshotsthathavethestatisticsofthepeak-loadperiodinthedatabase.
C.DecreasethesnapshotintervalintheAWRtocollectmorenumberofsnapshotsduringthepeak-loadperiod.
D.SetthesnapshotretentionperiodintheAutomaticWorkloadRepository(AWR)tozerotoavoidtheautomaticpurgingofthesnapshots. -
单项选择题
YouaremaintainingyourOLTPdatabaseinOracle10g.Whileobservingtheperformanceofthedatabase,youfindthatthelogswitchoccursmorethanonceforevery20minutes,affectingthedatabaseperformance.Whichfactorisresponsibleforfrequentlogswitches?()A.thevalueoftheUNDO_RETENTIONinitializationparameterB.thevalueoftheoptimalredologfilesizeprovidedbytheRedoLogfileSizeAdvisorC.theonlineredologfilessizeD.thenumberofredologmembersinagroup
A.Whileobservingtheperformanceofthedatabase,youfindthatthelogswitchoccursmorethanonceforevery20minutes,affectingthedatabaseperformance.Whichfactorisresponsibleforfrequentlogswitches?()
A.thevalueoftheUNDO_RETENTIONinitializationparameter
B.thevalueoftheoptimalredologfilesizeprovidedbytheRedoLogfileSizeAdvisor
C.theonlineredologfilessize
D.thenumberofredologmembersinagroup
