定义Student(学生)、Course(课程)、SC(选课)三个基本表如下: Student(Sno,name,sex,birthday,height),Primary Key=Sno Course(Cno,hour,credit,sem

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问题 定义Student(学生)、Course(课程)、SC(选课)三个基本表如下:
    Student(Sno,name,sex,birthday,height),Primary Key=Sno
    Course(Cno,hour,credit,semester),Primary Key=Cno
    SC(Sno,Cno,grade)
    完成下列题:
查询秋季学期有一门以上课程获得90分以上的学生名。

选项

答案Select name From Student Where Sno in (Select Sno From SC Where grade>=90.0 and Cno in (Select Cno From Course Where semester=′秋′));

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