SQL查询转换为LınQ

Question

我正在研究'NorthWind'数据库，我想将我的SQL代码转换为LınQ。

这里我的代码：

select s.CompanyName,o.OrderID, o.Freight 
from Orders as o 
join Shippers as s on o.ShipVia = s.ShipperID 

Answer 1

var query = from o in db.Orders 
      join s in db.Shippers on o.ShipVia equals s.ShipperID 
      select new { 
       o.OrderID, 
       o.Freight, 
       s.CompanyName 
      }; 

我建议你使用LINQ Pad学习LINQ和测试查询。