sql语句:SELECT * FROM dbo.tbstudent AS a INNER join (SELECT studentid , MAX(classid) AS classid FROM tbstudent GROUP BY studentID) AS b ON a.studentID = b.studentid AND a.classID = b.classID
扫一扫
评论
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
查看更多评论
添加红包
