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Youhavecreatedabaselinemetric,DISK_IO_BL,forthediskI/OmetricsinyourPRODdatabaseandyouhavebeengettingnotificationswheneverthedatabaseperformancedegrades.YouoptimizethedatabaseI/Otogaintheperformanceandyoudecidetoremovethebaselinemetrics.WhichmethodwouldyouusetoremovetheDISK_IO_BLbaselinemetrics?()
A.Thebaseline,oncecreated,cannotberemoved.
B.DisablethebaselinemetricsintheDatabaseControlManageMetricspage.
C.Thebaselinewillbeautomaticallyremovedoncethedatabaseperformancehasbeenoptimized.
D.DropthebaselinemetricsbyusingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINEprocedure.
参考答案