Whichtwooperationscanbeperformedonanexternaltable?(Choosetwo.)A.CreateaviewonthetableB.CreateanindexonthetableC.CreateasynonymonthetableD.AddavirtualcolumntothetableE.UpdatethetableusingtheUPDATEstatementF.DeleterowsinthetableusingtheDELETEcommand哪两种操作..
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2017-04-20 11:23:17
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WhichtwostatementsaretrueabouttheAutomaticWorkloadRepository(AWR)?(Choosetwo.)A.AllAWRtablesbelongtotheSYSTEMschemaB.TheAWRcontainssystemwidetracingandlogginginformationC.ThesnapshotscollectedbytheAWRareaccessiblethroughdatadictionaryviewsD.Thesnapshotscoll..
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2017-04-18 11:51:36
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ExaminethefollowingstatementthatisusedtomodifytheprimarykeyconstraintontheSALEStable:SQL>ALTERTABLESALESMODIFYCONSTRAINTpkDISABLEVALIDATE;Whichthreestatementsaretrueregardingtheabovecommand?(Choosethree.)A.Theconstraintremainsvalid.B.Theindexontheconstra..
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2017-04-18 11:46:26
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