select COUNT(1) from
(select * from Stu_Student
group by CampusID,DeptID,MajorID,Grade) s
参考页面:http://bbs.csdn.net/topics/390758575
select COUNT(1) from
(select * from Stu_Student
group by CampusID,DeptID,MajorID,Grade) s
参考页面:http://bbs.csdn.net/topics/390758575