在线名词解释大全 - 数据库题目11 - 详细

建立选修课程号为c2课程的学生信息的视图,视图包含学号、姓名、性别和选修的课程名、教师名和该课程成绩。

A
CREATE VIEW v1 SELECT s#,sname,sex,cname,teacher,grade FROM S,SC,C WHERE S.s#=SC.s# AND SC.c#=C.c# AND c#='c2'
B
CREATE VIEW v1 AS SELECT s#,sname,sex,cname,teacher,grade FROM S,SC,C WHERE c#='c2'
C
CREATE VIEW v1 AS SELECT s#,sname,sex,cname,teacher,grade FROM S,SC,C WHERE S.s#=SC.s# AND SC.c#=C.c# AND c#='c2'
D
CREATE VIEW v1 AS SELECT s#,sname,sex,cname,teacher,grade FROM S,SC,C WHERE S.s#=SC.s# AND c#='c2'
正确答案:
CREATE VIEW v1 AS SELECT s#,sname,sex,cname,teacher,grade FROM S,SC,C WHERE S.s#=SC.s# AND SC.c#=C.c# AND c#='c2'
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