SQL - 外部应用在SQL Server 2000中不起作用？

Question

我之前在我的公司测试服务器上测试过，以创建一个新的视图设计

SELECT     
    a.[CourseID], a.[Course Code], a.[Course Title] AS [Course Description], 
    a.[Result], a.[Employee No], a.[Employee Name], a.[Section], 
    CONVERT(VARCHAR, b.ActStartDate, 105) AS [Last Training Date], 
    CONVERT(VARCHAR, b.ValidTo, 105) AS [Validity Period], 
    a.[Status], a.[Flag]
FROM
    (SELECT     
         c.CourseID, c.CourseCode AS [Course Code], c.CourseTitle AS [Course Title], 
         c.CourseCode + ' - ' + c.CourseTitle AS Result, 
         b.EMPLOYEE_NO AS [Employee No], b.EMPLOYEE_NAME AS [Employee Name], 
         b.SECTION_CODE + ' - ' + b.SECTION_DESCRIPTION AS Section, 
         b.EMPLOYEE_STATUS AS Status, a.Flag
     FROM         
         dbo.ZOJT_EMP_COURSE AS a 
     INNER JOIN
         dbo.vEMPLOYEE_PROFILE AS b ON a.Employee_No = b.EMPLOYEE_NO 
     INNER JOIN
         dbo.tTMS_Course AS c ON c.CourseCode = a.CourseCode) A 
OUTER APPLY
    (SELECT TOP 1 *
     FROM
         (SELECT     
              b.CourseID, a.EmpNo, b.ActStartDate, a.ValidTo
          FROM         
              dbo.tTMS_Training_Record AS a 
          INNER JOIN
              (SELECT     
                   SchID, CourseID, MAX(ActStartDate) AS ActStartDate
               FROM          
                   dbo.tTMS_Training_Schedule AS z
               GROUP BY 
                   SchID, CourseID) AS b ON a.SchID = b.SchID) AS y
    WHERE 
        ActStartDate IS NOT NULL 
        AND CourseID = A.CourseID 
        AND EmpNo = A.[Employee No]
    ORDER BY 
        ActStartDate DESC, ValidTo DESC) B

但是，当我尝试在我的实时环境中移动此查询时，我得到2个不正确的语法错误。

一个靠近Outer Apply，另一个靠近Order By ActStartDate。当我问起这个问题时，我的老年人认为这可能是因为我用来测试的测试服务器是SQL Server 2008，而实时服务器是SQL Server 2000。

现在的问题是，情况确实如此吗？如果是，是否有解决方法？请注意，我没有办法或权限升级我的实时服务器。

Answer 1

您收到错误，因为SQL Server允许APPLAY操作符从SQL Server 2005到更高版本。要使用APPLY，数据库兼容级别必须至少为90，从2005年到之后可以使用。你必须使用子查询替换outer apply

    SELECT 

        a.[CourseID], a.[Course Code], a.[Course Title] AS [Course Description], a.[Result], a.[Employee No], a.[Employee Name], a.[Section], CONVERT(varchar, b.ActStartDate, 
                      105) AS [Last Training Date], CONVERT(varchar, b.ValidTo, 105) AS [Validity Period], a.[Status], a.[Flag]
    FROM         (SELECT     c.CourseID, c.CourseCode AS [Course Code], c.CourseTitle AS [Course Title], c.CourseCode + ' - ' + c.CourseTitle AS Result, b.EMPLOYEE_NO AS [Employee No], 
                      b.EMPLOYEE_NAME AS [Employee Name], b.SECTION_CODE + ' - ' + b.SECTION_DESCRIPTION AS Section, b.EMPLOYEE_STATUS AS Status, a.Flag
    FROM         dbo.ZOJT_EMP_COURSE AS a INNER JOIN
                      dbo.vEMPLOYEE_PROFILE AS b ON a.Employee_No = b.EMPLOYEE_NO INNER JOIN
                      dbo.tTMS_Course AS c ON c.CourseCode = a.CourseCode) 
    A left join
                          (SELECT  max(ActStartDate) as ActStartDate,
  max(ValidTo) as ValidTo,CourseID,EmpNo
                            FROM          (SELECT     b.CourseID, a.EmpNo, b.ActStartDate, a.ValidTo
                                            FROM         dbo.tTMS_Training_Record AS a INNER JOIN
                                            (SELECT     SchID, CourseID, MAX(ActStartDate) AS ActStartDate
                                            FROM          dbo.tTMS_Training_Schedule AS z
                                            GROUP BY SchID, CourseID) AS b ON a.SchID = b.SchID) as y

                            WHERE ActStartDate IS NOT NULL 
                           --AND CourseID = A.CourseID AND EmpNo = A.[Employee No]
                            --ORDER BY ActStartDate DESC, ValidTo DESC
                         group by CourseID,EmpNo
                         ) B 
                         on a.courseid = b.courseid and a.[employee no] = b.empno

Answer 2

对于在内部查询中使用的订单，请使用前100％的查询。

  GO
  select col1, col2 from 
  ( select top 100 percent col1, col2,
  ... from yourtable) as DC
  GO