这个表的sql转换为linq

Question

我需要以下结果才能帮助我？

City    ||     State       ||     Zip
---------------------------------------
Mayo    ||      FL         ||    234234
Mayo    ||      SC         ||    323455
Mayo    ||      MD         ||    665777

Select Distinct(City),
       State,
       Max(Zip) As Zip 
from Zipcode 
Group By City,State 
Order By City

这样的行可以在这里输入代码

Mayo          MD             665777
Mayo          MD             234566
Mayo          MD             667568

但我需要跳过并使用它的最大拉链。

此查询正常但我想将其转换为linq。

Answer 1

您可以这样做： -

var output= countries.GroupBy(c => new { c.State, c.City })
                                  .Select(a => new
                                  {
                                      City = a.Key.City,
                                      State = a.Key.State,
                                      Zip = a.Max(z => z.Zip)
                                  }).OrderBy(m => m.City);