如何将SQL转换为Linq

Question

我想将此sql语句转换为Linq格式，但没有成功。我不想显示所有数据，而是想显示每个类别的10个项目。任何帮助都会很棒。

select * 
from (
    select *, 
      row_number() over(partition by T.category order by T.id desc) as rn 
from clothes as T 
) as T 
where T.rn <= 10; 

我在linq的尝试在下面;

var query= from (subquery) as DB in dataContext.table where DB.rn <=10; 
       select DB; 
var subquery = row_number() over(partition by DB.id order by DB.category desc) as rn from DB in dataContext.table as DB 
        select DB; 

Answer 1

使用GroupBy，Take和SelectMany应该做的伎俩

var result = dataContext.table.GroupBy(m => m.category) 
      .SelectMany(g => g.OrderByDescending(x => x.Id).Take(10));