结果Column Null来自存储过程

Question

在我的存储过程中，我正在检查日期范围内的未决案例，以及仅基于开始日期和开始日期之前的未决案例。我试图将所有选择添加到一个存储过程中，但是当我执行代码时 - 对于开始日期中的打开案例，返回的所有结果都为空。这是我的完整存储过程，select语句AS OpenBeginCases是我遇到麻烦的地方。

SELECT 
     C.CaseNumber, 
     O.OfficeName, 
     CT.Description AS CaseType, 
     DATEADD(dd, 0, DATEDIFF(dd, 0, C.DateOpened)) AS DateOpened, 
     CR.Description AS Court, 
     CaseOfficeAppointment.OpenCases, 
     CaseOfficeAppointment.CloseCases, 
     CaseOfficeAppointment.OpenBeginCases 
FROM 
(
     SELECT C.CaseId, O.OfficeId, CRT.CourtId, 
     (
        SELECT COUNT(DISTINCT CD.CaseId) 
        FROM [Case] CD 
        INNER JOIN CaseOffice COD ON CD.CaseId = COD.CaseId 
        --INNER JOIN Court CR ON CD.CourtId = CR.CourtId 
        INNER JOIN Office OD ON COD.OfficeId = OD.OfficeId 
        LEFT OUTER JOIN CaseStatusChange CSC ON CD.CaseId = CSC.CaseId 
        --WHERE CR.CourtId = CRT.CourtId 
        WHERE OD.OfficeId = O.OfficeId 
        AND 
        (CD.DateOpened BETWEEN @BeginDate AND @EndDate 
         OR 
        CSC.DateReopened BETWEEN @BeginDate AND @EndDate 
        ) 
     )AS OpenCases, 
     (
        SELECT COUNT(DISTINCT CD.CaseId) 
        FROM [Case] CD 
        INNER JOIN CaseOffice COD ON CD.CaseId = COD.CaseId 
        --INNER JOIN Court CR ON CD.CourtId = CR.CourtId 
        INNER JOIN Office OD ON COD.OfficeId = OD.OfficeId 
        LEFT OUTER JOIN CaseStatusChange CSC ON CD.CaseId = CSC.CaseId 
        --WHERE CR.CourtId = CRT.CourtId 
        WHERE OD.OfficeId = O.OfficeId 
        AND 
        (CSC.DateClosed BETWEEN @BeginDate AND @EndDate 
        ) 
     )AS CloseCases, 
     (
       SELECT SUM(CaseCount)AS Counts 
       FROM (
          SELECT COUNT(C.CaseId) AS CaseCount,O.OfficeId 
          FROM [Case] C 
           INNER JOIN [Appointment] A ON C.CaseId = A.CaseId 
           INNER JOIN [Office] O ON A.OfficeId = O.OfficeId 
          WHERE C.DateCreated <= @BeginDate 
           AND C.CaseId NOT IN (SELECT CaseId FROM CaseStatusChange CSC WHERE CSC.DateClosed < @BeginDate) 
          GROUP BY O.OfficeId 

          UNION 

          -- Also need the cases that reopened and are currently open 
          SELECT COUNT(ReOpened.CaseId) As CaseCount, ReOpened.OfficeID 
          FROM (

            SELECT C.CaseId, MAX(CSC.DateReopened) AS DateReOpened, O.OfficeId 
            FROM [Case] C 
            INNER JOIN [CaseStatusChange] CSC ON C.CaseId = CSC.CaseId 
            INNER JOIN [Appointment] A ON C.CaseId = A.CaseId 
            INNER JOIN [Office] O ON A.OfficeId = O.OfficeId 
            WHERE CSC.DateReopened <= @BeginDate 
            GROUP BY C.CaseId, O.OfficeID 
           ) AS ReOpened 
          WHERE ReOpened.CaseId NOT IN 
           (
            SELECT CaseId FROM CaseStatusChange 
            WHERE CaseId = ReOpened.CaseId AND 
            CaseStatusChange.DateClosed BETWEEN ReOpened.DateReopened AND @BeginDate 
           ) 
           GROUP BY ReOpened.OfficeId 
         ) AS OpenCasesCount 
        GROUP BY OfficeId 
       )AS OpenBeginCases 

    FROM [Case] C 
     INNER JOIN [Appointment] A ON C.CaseId = A.CaseId 
     INNER JOIN [Office] O ON A.OfficeId = O.OfficeId 
     INNER JOIN [Court] CRT ON C.CourtId = CRT.CourtId 


    WHERE 
      -- Case was open (or reopened) during the date range 
      C.DateOpened BETWEEN @beginDate AND @endDate 
      OR 
      C.CaseId IN (SELECT CaseId FROM CaseStatusChange WHERE DateReopened BETWEEN @beginDate AND @endDate) 
      AND 
      -- Office had an appointment sometime during the date range 
      A.DateOn < @endDate AND (A.DateOff IS NULL OR A.DateOff BETWEEN @beginDate AND @endDate) 

      GROUP BY C.CaseId, O.OfficeId, CRT.CourtId 

     ) 
CaseOfficeAppointment 
INNER JOIN [Case] C ON CaseOfficeAppointment.CaseId = C.CaseId 
INNER JOIN [Office] O ON CaseOfficeAppointment.OfficeId = O.OfficeId 
INNER JOIN [CaseType] CT ON C.CaseTypeId = CT.CaseTypeId 
INNER JOIN [Court] CR ON C.CourtId = CR.CourtId 

Answer 1

为了清晰起见，请尝试将您的脚本清理为CTE格式，之后您可能会获得更好的洞察。

Answer 2

嗯...野生刺在黑暗中....改变你UNION到UNION ALL？

没有任何意义。