检索选修课程“C2”的学生中成绩最高的学生的学号。正确的SELECT的语句是______。

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问题检索选修课程“C2”的学生中成绩最高的学生的学号。正确的SELECT的语句是______。

选项 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 FROM SC    WHERE C#="C2")
D、SELECT S# FROM SC    WHERE C#="C2" AND GRADE＞ =ALL(SELECT GRADE FROM SC    WHERE C#="C2")

答案D

解析

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本试题收录于：二级VF题库NCRE全国计算机二级分类