转换SQL查询LINQ到实体

Question

我有，我使用LINQ-SQL写我的代码的特定场景，但我会做到这一点...但问题是，我无法将它转换！任何人都可以帮我一把吗？感谢

下面是该查询

INSERT

SET NOCOUNT ON; 
USE tempdb; 
GO 
CREATE TABLE dbo.Employe (
    Id int NOT NULL PRIMARY KEY, 
    Name varchar(10) NOT NULL 
); 
CREATE TABLE dbo.Customer (
    Id int NOT NULL PRIMARY KEY, 
    Name varchar(10) NOT NULL 
); 
CREATE TABLE dbo.Movement (
    Id int NOT NULL IDENTITY PRIMARY KEY, 
    EmployeeId int NOT NULL, 
    CustomerId int NOT NULL, 
    Data date NOT NULL, 
    Time int NOT NULL, 
    SpecialCost decimal(18,4) NULL 
); 
CREATE TABLE dbo.EmployeeCost (
    EmployeeId int NOT NULL, 
    Data date NOT NULL, 
    Value decimal(18,4) NOT NULL 
); 
GO 
INSERT INTO dbo.Customer 
    VALUES (1, 'Cli1'), (2, 'Cli2'), (3, 'Cli3'); 
INSERT INTO dbo.Employe 
    VALUES (1, 'Mirko'), (2, 'Andrea'); 
INSERT INTO dbo.EmployeeCost 
    VALUES (1, '20110101', 1), (1, '20110701', 1.5), (1, '20120101', 2); 

INSERT INTO dbo.EmployeeCost 
    VALUES (2, '20110101', 1), (2, '20120101', 1.3); 

INSERT INTO dbo.Movement 
    VALUES (1, 1, '20110301', 2, NULL) 
    , (2, 1, '20110501', 1, NULL) 
    , (1, 1, '20110801', 1, NULL) 
    , (2, 1, '20111001', 1, NULL) 
    , (2, 1, '20120201', 1, 0.5); 


GO 

和现在可查询

USE tempdb; 
GO 
WITH cte AS (
    SELECT c.EmployeeId, c.Data, c.Value 
    , ROW_NUMBER() OVER (PARTITION BY EmployeeId ORDER BY Data) AS [r] 
    FROM dbo.EmployeeCost c 
), 
cteCost AS (
    SELECT ec.EmployeeId, ec.Data, ec.Value 
    , ISNULL(DATEADD(DAY, -1, c.Data), '20991231') AS NextDate 
    FROM cte ec 
     LEFT JOIN cte c ON ec.EmployeeId = c.EmployeeId 
     AND c.r = ec.r +1 
) 
SELECT c.Id, c.Name 
    , m.Data, d.Name, m.Time AS [Time], ec.Value AS [Cost per Hour], m.SpecialCost 
    , m.Time * ISNULL(m.SpecialCost, ec.Value) AS [Employe Cost] 
    FROM dbo.Customer c 
    JOIN dbo.Movement m ON m.CustomerId = c.Id 
    JOIN dbo.Employe d ON m.EmployeeId = d.Id 
    JOIN cteCost ec 
     ON ec.EmployeeId = m.EmployeeId 
     AND m.Data BETWEEN ec.Data AND ec.NextDate; 
GO 

谁能帮助我？由于

编辑：结果的询问

--<---------------- 
Id   Customer Data  Employe Time  Cost per hour Total Cost 

1   Cli1  2011-03-01 Mirko  2   1.0000    2.0000000000 
1   Cli1  2011-05-01 Andrea  1   1.0000     1.0000000000 
1   Cli1  2011-08-01 Mirko  1   1.5000     1.5000000000 
1   Cli1  2011-10-01 Andrea  1   1.0000     1.0000000000 
1   Cli1  2012-01-15 Mirko  1   2.0000   
1   Cli1  2012-02-01 Andrea  1   1.3000  0.5000000000 

Answer 1

我看不出这需要传递到CTE语句中的任何参数，这样你就可以create a view和模型映射。

然后您可以像访问其他表一样访问视图。

编辑

create view dbo.vwEmployeeCosts as 

;WITH cte AS (
    ... 
) 
select * 
    ... 
from 

然后在你的模型图这一观点，就像你有一张桌子