Question

我有一个返回6行的查询，我想聚合信息以提供具有实例数的单行。无聚合查询返回正确的数据但是当我向查询添加GroupBy和Count时，它返回2行。

第一个结果中显示的基础ID（SR01.ReportKey）有两个记录，因此我认为Group By在分组中以某种方式使用此字段。

注意：ReportKey实际上并没有在我刚刚在第一个结果中使用的查询中用于信息目的。

问题：

知道为什么Group By没有将所有行分组到一个计数为6的单个结果中？

没有汇总

查询：

SELECT 
    'Open' AS RecStatus,
    ISNULL(UWZone.UWZoneID,'') AS ZoneID,
    ISNULL(UWZone.UWZoneName,'') AS ZoneName,
    Branch.BranchID,
    ISNULL(Branch.BranchName,'') AS BranchName,
    UW.UWID AS ServicingRep,
    ISNULL(UW.UWName,'') + '/' + ISNULL(UA.UWName, '') AS RepName
    FROM ProductivityRecommendations
        INNER JOIN SR01 ON SR01.ReportKey = ProductivityRecommendations.ReportKey
        LEFT JOIN UW ON SR01.Underwriter = UW.UWID
        LEFT JOIN UW AS UA ON SR01.UA = UA.UWID
        LEFT JOIN Branch ON SR01.ProdBranch = Branch.BranchID
        LEFT JOIN UWZone ON UWZone.UWZoneAbbrev = Branch.UWZone 
    WHERE ISNULL(SR01.ServicingBranch,'-') <> '-'
        AND ProductivityRecommendations.DateComplete BETWEEN @DateFrom AND @DateTo
        AND ProductivityRecommendations.RecCriticality IN ('CRI', 'CCM')
        AND ProductivityRecommendations.RecStatus IN ('N','O','U','A','R')
        AND DateRecIssued IS NOT NULL
        AND (@Zone IS NULL OR (UWZone.UWZoneID IN (SELECT val FROM ufn_SplitMax(@Zone ,','))))
        AND (@Branch IS NULL OR (Branch.BranchID IN (SELECT val FROM ufn_SplitMax(@Branch ,','))))
        AND (@RepID IS NULL OR (SR01.Underwriter IN(SELECT val FROM ufn_SplitMax(@RepID ,','))) OR @RepID IS NULL OR (SR01.UA IN(SELECT val FROM ufn_SplitMax(@RepID ,','))))
        AND (@InsuredNumber IS NULL OR (ProductivityRecommendations.CustNum IN (SELECT val FROM ufn_SplitMax(@InsuredNumber ,','))))

结果：

enter image description here

添加汇总

查询：

SELECT 
    'Open' AS RecStatus,
    ISNULL(UWZone.UWZoneID,'') AS ZoneID,
    ISNULL(UWZone.UWZoneName,'') AS ZoneName,
    Branch.BranchID,
    ISNULL(Branch.BranchName,'') AS BranchName,
    UW.UWID AS ServicingRep,
    ISNULL(UW.UWName,'') + '/' + ISNULL(UA.UWName, '') AS RepName,
    COUNT(ProductivityRecommendations.RecStatus) AS Requests
    FROM ProductivityRecommendations
        INNER JOIN SR01 ON SR01.ReportKey = ProductivityRecommendations.ReportKey
        LEFT JOIN UW ON SR01.Underwriter = UW.UWID
        LEFT JOIN UW AS UA ON SR01.UA = UA.UWID
        LEFT JOIN Branch ON SR01.ProdBranch = Branch.BranchID
        LEFT JOIN UWZone ON UWZone.UWZoneAbbrev = Branch.UWZone 
    WHERE ISNULL(SR01.ServicingBranch,'-') <> '-'
        AND ProductivityRecommendations.DateComplete BETWEEN @DateFrom AND @DateTo
        AND ProductivityRecommendations.RecCriticality IN ('CRI', 'CCM')
        AND ProductivityRecommendations.RecStatus IN ('N','O','U','A','R')
        AND DateRecIssued IS NOT NULL
        AND (@Zone IS NULL OR (UWZone.UWZoneID IN (SELECT val FROM ufn_SplitMax(@Zone ,','))))
        AND (@Branch IS NULL OR (Branch.BranchID IN (SELECT val FROM ufn_SplitMax(@Branch ,','))))
        AND (@RepID IS NULL OR (SR01.Underwriter IN(SELECT val FROM ufn_SplitMax(@RepID ,','))) OR @RepID IS NULL OR (SR01.UA IN(SELECT val FROM ufn_SplitMax(@RepID ,','))))
        AND (@InsuredNumber IS NULL OR (ProductivityRecommendations.CustNum IN (SELECT val FROM ufn_SplitMax(@InsuredNumber ,','))))
    GROUP BY UWZone.UWZoneID, UWZone.UWZoneName, Branch.BranchID, Branch.BranchName, SR01.ServicingRep, UW.UWID, ISNULL(UW.UWName,'') + '/' + ISNULL(UA.UWName, '')

结果：

enter image description here

Answer 1

正如@Johan在评论中所说：

这将只在你描述的senario中给你1行：

GROUP BY 
  ISNULL(UWZone.UWZoneID,''),
  ISNULL(UWZone.UWZoneName,''),
  Branch.BranchID,
  ISNULL(Branch.BranchName,'') ,
  UW.UWID,
  ISNULL(UW.UWName,''),
  ISNULL(UA.UWName, '')

Answer 2

尝试＆＃34;选择不同的＆＃34;您正在分组的列，以及LEN，以查看它们是否有空格或其他未看到的char，还测试NULL。然后，根据您的需要，使用ISNULL，COALESCE，CASE和/或WHERE语句决定如何处理这些列。

TSQL Group By＆amp;计数不按预期汇总

2 个答案: