学生表： Student 学生表 ( 学号，姓名，性别，年龄，组织部门

参考答案:

(1)

select sno,sname

from student

where sno in (

select sno

from sc

where cno = (

select cno

from course

where cname= 计算机原理

)

)

(2)

select cname

from course

where cno in (

select cno

from sc

where sno =

(

select sno

from student

where sname= 周星驰

)

)

(3)

select sno,sname

From student

Where sno in (

select sno

from scgroup by sno having count(sno)=5

)

暂无解析