无法解决排序规则冲突 - SQL Server 2008 R2 SP1答案

【问题标题】：Cannot resolve the collation conflict - SQL Server 2008 R2 SP1无法解决排序规则冲突 - SQL Server 2008 R2 SP1
【发布时间】：2016-01-04 10:42:06
【问题描述】：

我正在尝试运行以下查询：

SELECT [id]
      ,[company_id]
      ,[entry_no_]
      ,[project_no_sk]
      ,[project_no_]
      ,[task_code_sk]
      ,[task_code]
      ,[resource_code_sk]
      ,[resource_code]
      ,[work_type_code_sk]
      ,[work_type_code]
      ,[date_sk]
      ,[date]
      ,(SELECT  [Price]
        FROM    [helios_navision_data_mart].[dbo].[dim_resource_prices]
        WHERE   [Project No_]       = [project_no_]
        AND     [Work Type Code]    = [work_type_code]
        AND     [Task Code]     =   CASE WHEN [Task Code] IN (task_code) 
                                                    THEN task_code
                                        ELSE ''
                                    END
        ) as [Unit Price]
      ,[quantity]
  FROM [dbo].[fact_operational_time_entry]
  WHERE project_no_ = 'CHM-001'
  AND [chargeable] = 'Yes'
  AND [approved] = 'No'

但是在执行这个查询时我收到了错误：

Msg 468, Level 16, State 9, Line 17
Cannot resolve the collation conflict between "SQL_Latin1_General_CP1_CS_AS" and "Latin1_General_CS_AS" in the equal to operation.

我已经检查了表格、数据库和服务器的排序规则，它们都有“Latin1_General_CS_AS”作为排序规则定义。错误发生在 WHERE 子句中的某处，但我看不到在哪里..因为排序规则相同。

有人有想法吗？请帮忙。

韩国，凯文

【问题讨论】：

标签： sql-server-2008-r2 collation

【解决方案1】：

不知道为什么，但我不得不修改子查询以强制更改排序规则..

,(SELECT    [Price]
        FROM    [helios_navision_data_mart].[dbo].[dim_resource_prices]
        WHERE   [Project No_]       = [project_no_] COLLATE Latin1_General_CS_AS
        AND     [Work Type Code]    = [work_type_code] COLLATE Latin1_General_CS_AS
        AND     [Task Code]         =   (CASE WHEN [Task Code] IN ([task_code] COLLATE Latin1_General_CS_AS) 
                                                    THEN [task_code] COLLATE Latin1_General_CS_AS
                                                ELSE ''
                                        END)
        ) as [Unit Price]

【讨论】：