查询score中选学多门课程的同学中分数为非最高分成绩的记录。

it2022-05-07  28

 

select * from score a where sno in (                               

select sno from score group by sno having count(*)>1)             --子查询 选多门课的同学

and degree<(select max(degree) from score b where a.cno=b.cno )      --非最高分

转载于:https://www.cnblogs.com/sistrong-5880558/p/7738963.html


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