sql - 过滤器最大值 rn

Question

如何在此处过滤 rn 的最大值

select  *
from    (
        select  *
        ,       row_number() over (partition by name order by ox asc) as rn
        from    YourTable
        ) as SubQueryAlias
where   rn = 1

在它的归档之上rn = 1

我要过滤rn = max(rn)

Answer 1

改用order by ox asc和order by ox desc使用rn = 1

select  *
from    (
        select  *
        ,       row_number() over (partition by name order by ox desc) as rn
        from    YourTable
        ) as SubQueryAlias
where   rn = 1

Answer 2

检查这个以获得 rn = max(rn)：

select top 1 * from 
( select * , 
    row_number() over (partition by name order by ox asc) 
    as rn from YourTable ) 
as SubQueryAlias 
order by rn desc