单项选择题
	A.BTQ  
	B.LTQ  
	C.IP  
	D.DTQ
单项选择题 TableTAB1wascreatedusingthefollowingstatement:CREATETABLEtab1(c1INT,c2INT,c3INT,c4INT,c5INT);IfcolumnC1isuniqueandqueriestypicallyaccesscolumnsC1andC2together,whichstatement(s)willcreateindex(es)thatwillprovideoptimalqueryperformance?()
单项选择题 Whenistheconnectionconcentratorenabled?()
单项选择题 Whichaction(s)willcauseacompressiondictionarytoberemovedfromatable?()