如何在(linq 和 lambda)中将 select 与 max,min 函数一起使用?

How, I can use select with max,min function in (linq and lambda)?

我需要使用 linq 和 lambda 搜索最大值和最小值。我有sqlselect,例如:

SELECT 
      [ProdID]
      ,min([APY]) as minAPY
      ,max([APY]) as minAPY
  FROM [dbase].[dbo].[Dept]
  group by ProdID
  order by ProdID 

谢谢你的帮助!

查询应该是这样的:

var res = from x in db.Debt
          group x by x.ProdID into y
          orderby y.Key
          select new 
          { 
              ProdID = y.Key, 
              minAPY = y.Min(z => z.APY), 
              maxAPY = y.Max(z => z.APY) 
          };

如您所见,它很好地反映了 TSQL 查询。唯一的 "important" 是 group 之后的 into y (继续查询所必需的)

试试这个:

var result = from table in ContextDB.Dept 
                   group table by table.ProdID into tableGroup
                   order by table.ProdId
                   select new 
                   {
                        ProdID = tableGroup.Key, 
                        minAPY = tableGroup.Min(item => item.APY), 
                        maxAPY = tableGroup.Max(item => item.APY) 
                   }