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单选,5分] 假设学生关系S(S#,SNAME,SEX),课程关系C(C#,CNAME),学生选课关系SC(S#,C#,GRADE)。要查询选修“Computer”课的男生姓名,将涉及到关系( )。

多选题
2021-09-03 16:25
A、S
B、S,SC
C、C,SC
D、S,C,SC
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正确答案
D@#@D

试题解析

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单选,5分] 假设学生关系S(S#,SNAME,SEX),课程关系C(C#,CNAME),学生选课关系SC(S#,C#,GRADE)。要查询选修“Computer”课的男生姓名,将涉及到关系( )。
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