多项选择题
A. when you need to disable the index usage
B. when you need to change storage options
C. when you need to enable index monitoring
D. when you need to move the index to another tablespace
单项选择题 YousettherecoverywindowtosevendaysandthebackupoptimizationtoONusingtheCONFIGUREcommandofRecoveryManager（RMAN）.ThemostrecentbackupoftheTOOLStablespacetodiskwastakenonJanuary3.TheTOOLStablespaceisread-only.OnFebruary21，whenyouexecuteacommandtobackupallthetablespacestodisk，youfindthatRMANbacksupthe TOOLS tablespacealso，eventhoughthecontentsofthetablespacehavenotchangedafterthebackuponJanuary3.BecausetherearenochangesmadetotheTOOLStablespace，youdecidethatthetablespaceshouldnotbebackedupbyRMAN.WhatcanyoudotoskipbackinguptheTOOLStablespacewithoutchangingthecurrentbackupoptimizationsetting？（）
单项选择题 YouaredesigninganapplicationforCertkiller.comandyouhavebeenaskedtodesignadatabasetabletofacilitatemonthlybillgeneration.Thebillwouldincludedetailsofcustomercalls，listedinchronologicalorder.Whichmethodwouldyoufollowtoachievethisobjectivewithoutincreasingtheoverheadofsortingtherows？（）
单项选择题 WhilecreatingajobclassusingtheDBMS_SCHEDULERpackage，yousettheloggingleveltoLOGGING_RUNS.Whatwouldbetheimpactofthissetting？（）