A.SELECT SN,AGE,SEX FROM S WHERE AGE>(SELECT AGE FROM S WHERE SN='王华')
B.SELECT SN,AGE,SEX FROM S WHERE SN='王华'
C.SELECT SN,AGE,SEX FROM S WHERE AGE>(SELECT AGE WHERE SN='王华')
D.SELECT SN,AGE,SEX FROM S WHERE SGE>'王华'.AGE
第1题
A.SELECT SN,AGE,SEX FROM S WHERE AGE>(SELECT AGE FROM S WHERE SN='王华')
B.SELECT SN,AGE,SEX FROM S WHERE SN='王华'
C.SELECT SN,AGE,SEX FROM S WHERE AGE>(SELECT AGE WHERE SN='王华')
D.SELECT SN,AGE,SEX FROM S WHERE SGE>'王华'.AGE
第2题
第3题
第4题
第5题
第6题
第7题
A.SELECT S#, SN, CN, GRADE FROM S, SC, C WHERE CN=“数据库原理”
B.SELECT S#, SN, CN, GRADE FROM S, SC, C WHERE S.S#=SC.S# AN CN=“数据库原理”
C.SELECT S#, S.SN, CN, GRADE FROM S, SC, C WHERE S.S#=SC.S# AND C.C#=SC.S# AND CN=“数据库原理”
D.SELECT S.S#, SN, CN, GRADE FROM S, SC, C WHERE S.S#=SC.S# AND C.C#=SC.S# AND CN=“数据库原理”
第8题
A.SELECT S# FROM SC WHERE C#=C2 AND GRADE>=(SELECT GRADE FROM SC WHERE C#=C2)
B.SELECT S# FROM SC WHERE C#=C2 AND GRADE IN(SELECT GRADE FROM SC WHERE C#=C2)
C.SELECT S# FROM SC WHERE C#=C2 AND GRADE NOT IN (SELECT GRADE GORM SC WHERE C#=C2)
D.SELECT S# FROM SC WHERE C#=C2 AND GRADE>=ALL(SELECT GRADE FROM SC WHERE C#=C2)
第9题
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