Sql 排序时出现多部分标识符错误

我需要一个如上所述的列表，我想在“休假生产”日期进行排序，项目编号必须保持3人一组，如上所述

我已经有了这个SQL。列表正在工作，但排序不工作。错误是：

无法绑定多部分标识符“任务。[任务截止日期]”

我已经有了一个建议，但仍然有错误。我该如何分类

这是我得到的清单：

Project nr      Task                  Task deadline    Task Type Production
---------------------------------------------------------------------------
456             packed                1 april 2013      Packed
456             Leave production      3 april 2013      Leave Production
456             Flight date           9 april 2013      Flight Date
123             packed                1 april 2013      Packed
123             Leave production      6 april 2013      Leave Production
123             Flight date           9 april 2013      Flight Date
789             packed                1 april 2013      Packed
789             Leave production      9 april 2013      Leave Production
789             Flight date           9 april 2013      Flight Date

这是SQL查询：

Project Nr     Task             TaskDate
0053           Packed           2013-02-05 17:00:00.000
0053           Leave Production 2011-04-26 17:00:00.000
0053           Flight Date      2011-04-22 17:00:00.000
0071           Leave Production 2011-06-24 17:00:00.000
0081           Leave Production 2012-03-09 17:00:00.000
0081-01        Leave Production 2012-03-09 17:00:00.000 

此行应执行以下排序：

SELECT  
    [Project nr], Task, TaskDate
FROM    
    (SELECT   
        MSP_EpmProject_UserView.[Project nr]
        ,MAX(CASE WHEN [Task Type Production] = 'Packed' 
                  THEN [Task deadline] 
             END) AS Packed
        ,MAX(CASE WHEN [Task Type Production] = 'Leave Production' 
                  THEN [Task deadline]
             END) AS [Leave Production]
        ,MAX(CASE WHEN [Task Type Production] = 'Flight Date' 
                  THEN [Task deadline]
             END) AS [Flight Date]
     FROM 
        MSP_EpmProject_UserView 
     LEFT JOIN 
        MSP_EpmTask_UserView ON MSP_EpmProject_UserView.ProjectUID = MSP_EpmTask_UserView.ProjectUID 
     LEFT JOIN 
        MSP_EpmAssignment_UserView ON MSP_EpmTask_UserView.TaskUID = MSP_EpmAssignment_UserView.TaskUID 
     LEFT JOIN 
        MSP_EpmResource_UserView ON MSP_EpmAssignment_UserView.ResourceUID = MSP_EpmResource_UserView.ResourceUID 
     WHERE 
        (MSP_EpmTask_UserView.TaskIsProjectSummary = 0) 
     GROUP BY 
        MSP_EpmProject_UserView.[Project nr]) data
UNPIVOT
    (TaskDate
       FOR [Task] IN ([Pack], [Leave Production], [Flight Date])
    ) piv

但我犯了个错误

Msg 4104，第16级，状态1，第62行
无法绑定由多个部分组成的标识符“data.TaskDudate”

---

别名为

data

的子查询没有返回名为

taskDaildate

从SQL语句中可以看到，该子查询包含以下列：

ORDER BY data.[Task deadline]

但仅此而已-没有

任务截止日期

任何地方可以看到

---

因此，很明显，您不能使用

orderby

子句中不存在的列。

我需要在[Leave Production]上排序，这会产生相同的错误。taskdeadline不是一个正确的例子。正是我尝试的。如果您想按

[离开生产]

订购-您需要指定

按[离开生产]

订购（而不是按

[任务截止日期]

）。。。。

[Project nr]
Packed
[Leave Production]
[Flight Date]