select COUNT(1) from
(select * from Stu_Student
group by CampusID,DeptID,MajorID,Grade) s
参考页面:http://bbs.youkuaiyun.com/topics/390758575
select COUNT(1) from
(select * from Stu_Student
group by CampusID,DeptID,MajorID,Grade) s
参考页面:http://bbs.youkuaiyun.com/topics/390758575
转载于:https://www.cnblogs.com/freemindblog/p/4245905.html