单项选择题

YourdatabaseisrunninginARCHIVELOGmode.TheSCOTT.EMPtable……

YourdatabaseisrunninginARCHIVELOGmode.TheSCOTT.EMPtablebelongstotheDATA1tablespace.ThejuniorDBAerroneouslyrunsascriptthatexecutesthefollowingstatement：SQL>DROPTABLESCOTT.EMPPURGE；Afteronehour，youareperformingtheusermanagedincompleterecovery.Whichdatafileswillyourestorefromthelastfullbackup？（）
A.thedatafilesassociatedwiththeSYSTEMtablespace
B.thedatafilesassociatedtotheDATA1tablespace
C.thedatafilesassociatedtotheSYSTEMandDATA1tablespaces
D.allthedatafilesinthedatabase

A.TheSCOTT.EMPtablebelongstotheDATA1tablespace.ThejuniorDBAerroneouslyrunsascriptthatexecutesthefollowingstatement：SQL>DROPTABLESCOTT.EMPPURGE；Afteronehour，youareperformingtheusermanagedincompleterecovery.Whichdatafileswillyourestorefromthelastfullbackup？（）
A.thedatafilesassociatedwiththeSYSTEMtablespace
B.thedatafilesassociatedtotheDATA1tablespace
C.thedatafilesassociatedtotheSYSTEMandDATA1tablespaces
D.allthedatafilesinthedatabase

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热门试题

单项选择题YouareusingthebackupschedulerinEnterpriseManager（EM）toscheduleabackupofyourdatabase.Whichtypeofscriptdoesthebackupschedulergenerate？（）

A.SQLscript
B.PL/SQLscript
C.OperatingSystem（OS）script
D.EnterpriseManager（EM）script
E.RecoveryManager（RMAN）script

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A.out.PrintIn（sub.i）；））Whatistheresult？（）
A.Compilationwillfail.
B.Compilationwillsucceedandtheprogramwillprint“0”
C.Compilationwillsucceedandtheprogramwillprint“1”
D.Compilationwillsucceedandtheprogramwillprint“2”

单项选择题GiventheActionEvent，whichmethodallowsyoutoidentifytheaffectedcomponent？（）

A.GetClass.
B.GetTarget.
C.GetSource.
D.GetComponent.
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单项选择题1.classExc0extendsException{}2.classExc1extendsExc0{}3.publicclassTest{4.publicstaticvoidmain（Stringargs[]）{5.try{6.thrownewExc1（）；7.}catch（Exc0e0）{8.System.out.println（Ex0caught”）；9.}catch（Exceptione）{10.System.out.println（exceptioncaught”）；11.}12.}13.}Whatistheresult？（）A.Ex0caughtB.exceptioncaughtC.Compilationfailsbecauseofanerroratline2.D.Compilationfailsbecauseofanerroratline6.

A.classExc0extendsException{}2.classExc1extendsExc0{}3.publicclassTest{4.publicstaticvoidmain（Stringargs[]）{5.try{6.thrownewExc1（）；7.}catch（Exc0e0）{8.System.out.println（Ex0caught”）；9.}catch（Exceptione）{10.System.out.println（exceptioncaught”）；11.}12.}13.}Whatistheresult？（）
A.Ex0caught
B.exceptioncaught
C.Compilationfailsbecauseofanerroratline2.
D.Compilationfailsbecauseofanerroratline6.

单项选择题AnapplicationconnectstoaSQLAzuredatabase.TheapplicationoccasionallylosestheconnectiontotheSQLAzuredatabase.Youneedtorecommendanapproachforreliablycompletingdataaccessoperations.Whatshouldyourecommend？（）A.UseMicrosoftADO.NETconnectionpooling.B.Passexceptionstotheuserinterfacelayer.C.Implementaretrypolicyinthedataaccesslayer.D.Beginatransactionbeforeeachdataaccessoperation.

A.TheapplicationoccasionallylosestheconnectiontotheSQLAzuredatabase.Youneedtorecommendanapproachforreliablycompletingdataaccessoperations.Whatshouldyourecommend？（）
A.UseMicrosoftADO.NETconnectionpooling.
B.Passexceptionstotheuserinterfacelayer.
C.Implementaretrypolicyinthedataaccesslayer.
D.Beginatransactionbeforeeachdataaccessoperation.