select isnull(salary,null) as SecondHighestSalary
from(select distinct salary,row_number()over(order by salary desc) rn
from Employee
) temp
where rn=2;
select isnull(salary,null) as SecondHighestSalary from(select distinct salary,row_number()over(order by salary desc) rn from Employee ) temp where rn=2;
猜你喜欢
转载自www.cnblogs.com/wsq-blog/p/10952468.html
今日推荐
周排行