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TheuserHRownstheEMPtable.TheuserHRgrantsprivilegestotheuserSCOTTbyusingthiscommand：SQL>GRANTSELECT，INSERT，UPDATEONempTOscottWITHGRANTOPTION；TheuserSCOTTexecutesthiscommandtograntprivilegestotheuserJIM：SQL>GRANTSELECT，INSERT，UPDATEONhr.empTOjim；Now，theuserHRdecidestorevokeprivilegesfromJIMusingthiscommand：SQL>REVOKESELECT，INSERT，UPDATEONempFROMjim；WhichstatementistrueafterHRissuestheREVOKEcommand（）
A.ThecommandfailsbecauseSCOTTstillhasprivileges.
B.ThecommandsucceedsandprivilegesarerevokedfromJIM.
C.ThecommandfailsbecauseHRcannotrevoketheprivilegesfromJIM.
D.ThecommandsucceedsandonlyHRhastheprivilegetoperformtheSELECT，INSERT，andUPDATEoperationsontheEMPtable.
参考答案