Question

我正在处理一个冗长的复杂查询：

DECLARE @userParam VARCHAR(100)
    ,@startDateParam DATETIME
    ,@endDateParam DATETIME
    ,@orgTeamPK VARCHAR(100)
    ,@teamId VARCHAR(100)
    ,@productId VARCHAR(100)

SET @userParam = '%'
SET @startDateParam = '2013-09-02 00:00:00'
SET @endDateParam = '2013-09-08 00:00:00'
SET @orgTeamPK = '%'
SET @teamId = '%'
SET @productId = '%'

SELECT '3' AS RowType
    ,DTH.PointPerson AS Person
    ,'' AS [Status]
    ,'' AS OrganizationalTeam
    ,'' AS Project
    ,'' AS Sprint
    ,'' AS Story
    ,'Subtotal:' AS Task
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 2
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS MondayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 3
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS TuesdayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 4
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS WednesdayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 5
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS ThursdayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 6
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS FridayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 7
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS SaturdayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 1
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS SundayHours
    ,CAST(SUM(DTH.[Hours]) AS VARCHAR(20)) AS TotalHours
FROM DailyTaskHours DTH
LEFT JOIN Task TSK ON DTH.TaskId = TSK.PK_Task
LEFT JOIN Story STY ON TSK.StoryId = STY.PK_Story
LEFT JOIN NonScrumStory NSS ON DTH.NonScrumStoryId = NSS.PK_NonScrumStory
LEFT JOIN Sprint SPT ON STY.SprintId = SPT.PK_Sprint
LEFT JOIN Product PDT ON STY.ProductId = PDT.PK_Product
LEFT JOIN ProductTeamUser PTU ON TSK.ProductTeamUserId = PTU.PK_ProductTeamUser
LEFT JOIN [User] USR ON PTU.UserId = USR.PK_User
LEFT JOIN OrganizationalTeam OLT ON USR.OrganizationalTeamId = OLT.PK_OrganizationalTeam
LEFT JOIN UserAuthorization UAN2 ON (PDT.PK_Product = UAN2.ProductId AND UAN2.Deleted IS NULL)
WHERE DTH.PointPerson LIKE @userParam
    AND ActivityDate >= @startDateParam
    AND ActivityDate <= @endDateParam
    AND COALESCE(OLT.PK_OrganizationalTeam,'') LIKE @orgTeamPK 
    AND UAN2.ProductId LIKE @productId
GROUP BY DTH.PointPerson
HAVING SUM(DTH.[Hours]) > 0
) AS My_View
--

UNION

--
SELECT '3' AS RowType
    ,DTH.PointPerson AS Person
    ,'' AS [Status]
    ,'' AS OrganizationalTeam
    ,'' AS Project
    ,'' AS Sprint
    ,'' AS Story
    ,'Subtotal:' AS Task
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 2
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS MondayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 3
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS TuesdayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 4
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS WednesdayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 5
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS ThursdayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 6
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS FridayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 7
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS SaturdayHours
    ,CAST(SUM(CASE 
                WHEN DATEPART(dw, DTH.ActivityDate) = 1
                    THEN DTH.[Hours]
                ELSE 0
                END) AS VARCHAR(20)) AS SundayHours
    ,CAST(SUM(DTH.[Hours]) AS VARCHAR(20)) AS TotalHours
FROM DailyTaskHours DTH
LEFT JOIN Task TSK ON DTH.TaskId = TSK.PK_Task
LEFT JOIN Story STY ON TSK.StoryId = STY.PK_Story
LEFT JOIN NonScrumStory NSS ON DTH.NonScrumStoryId = NSS.PK_NonScrumStory
LEFT JOIN Sprint SPT ON STY.SprintId = SPT.PK_Sprint
LEFT JOIN Product PDT ON STY.ProductId = PDT.PK_Product
LEFT JOIN ProductTeamUser PTU ON TSK.ProductTeamUserId = PTU.PK_ProductTeamUser
LEFT JOIN [User] USR ON PTU.UserId = USR.PK_User
LEFT JOIN OrganizationalTeam OLT ON USR.OrganizationalTeamId = OLT.PK_OrganizationalTeam
LEFT JOIN UserAuthorization UAN1 ON (USR.PK_User = UAN1.UserId AND UAN1.Deleted IS NULL)
WHERE DTH.PointPerson LIKE @userParam
    AND ActivityDate >= @startDateParam
    AND ActivityDate <= @endDateParam
    AND COALESCE(OLT.PK_OrganizationalTeam,'') LIKE @orgTeamPK 
    AND UAN1.OrganizationalTeamId LIKE @teamId
GROUP BY DTH.PointPerson
HAVING SUM(DTH.[Hours]) > 0

可以生成两行并将其放入rowtype 3中。它们之间有一个UNION，因此两个结果都会显示，但重复不会。这是按预期工作的，但是有些情况是因为并非所有单元格都在行之间相加，所以它显示了该行的两个版本。如果发生这种情况，我想在那里显示最后一个单元格较大的行（总列数）。

我如何实现这一目标？

编辑（试图澄清）：

我有一个联盟，有时会为同一个人产生两行：

如果发生这种情况，我只想显示总数较高而不是两者的行。我怎么做？ enter image description here

EDIT2：

更新了建议..仍然有相同的结果。有什么问题？

SELECT RowType
    ,Person
    ,[Status] 
    ,OrganizationalTeam 
    ,Project
    ,Sprint
    ,Story 
    ,[Task] 
    ,MondayHours 
    ,TuesdayHours 
    ,WednesdayHours
    ,ThursdayHours
    ,FridayHours
    ,SaturdayHours
    ,SundayHours
    ,MAX(DerivedTable.TotalHours)
    FROM (
    SELECT '3' AS RowType
        ,DTH.PointPerson AS Person
        ,'' AS [Status]
        ,'' AS OrganizationalTeam
        ,'' AS Project
        ,'' AS Sprint
        ,'' AS Story
        ,'Subtotal:' AS Task
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 2
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS MondayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 3
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS TuesdayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 4
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS WednesdayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 5
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS ThursdayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 6
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS FridayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 7
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS SaturdayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 1
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS SundayHours
        ,CAST(SUM(DTH.[Hours]) AS VARCHAR(20)) AS TotalHours
    FROM DailyTaskHours DTH
    LEFT JOIN Task TSK ON DTH.TaskId = TSK.PK_Task
    LEFT JOIN Story STY ON TSK.StoryId = STY.PK_Story
    LEFT JOIN NonScrumStory NSS ON DTH.NonScrumStoryId = NSS.PK_NonScrumStory
    LEFT JOIN Sprint SPT ON STY.SprintId = SPT.PK_Sprint
    LEFT JOIN Product PDT ON STY.ProductId = PDT.PK_Product
    LEFT JOIN ProductTeamUser PTU ON TSK.ProductTeamUserId = PTU.PK_ProductTeamUser
    LEFT JOIN [User] USR ON PTU.UserId = USR.PK_User
    LEFT JOIN OrganizationalTeam OLT ON USR.OrganizationalTeamId = OLT.PK_OrganizationalTeam
    LEFT JOIN UserAuthorization UAN2 ON (
            PDT.PK_Product = UAN2.ProductId
            AND UAN2.Deleted IS NULL
            )
    WHERE DTH.PointPerson LIKE @userParam
        AND ActivityDate >= @startDateParam
        AND ActivityDate <= @endDateParam
        AND COALESCE(OLT.PK_OrganizationalTeam, '') LIKE @orgTeamPK
        AND UAN2.ProductId LIKE @productId
    GROUP BY DTH.PointPerson
    HAVING SUM(DTH.[Hours]) > 0
    --

    UNION

    --
    SELECT '3' AS RowType
        ,DTH.PointPerson AS Person
        ,'' AS [Status]
        ,'' AS OrganizationalTeam
        ,'' AS Project
        ,'' AS Sprint
        ,'' AS Story
        ,'Subtotal:' AS Task
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 2
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS MondayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 3
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS TuesdayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 4
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS WednesdayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 5
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS ThursdayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 6
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS FridayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 7
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS SaturdayHours
        ,CAST(SUM(CASE 
                    WHEN DATEPART(dw, DTH.ActivityDate) = 1
                        THEN DTH.[Hours]
                    ELSE 0
                    END) AS VARCHAR(20)) AS SundayHours
        ,CAST(SUM(DTH.[Hours]) AS VARCHAR(20)) AS TotalHours
    FROM DailyTaskHours DTH
    LEFT JOIN Task TSK ON DTH.TaskId = TSK.PK_Task
    LEFT JOIN Story STY ON TSK.StoryId = STY.PK_Story
    LEFT JOIN NonScrumStory NSS ON DTH.NonScrumStoryId = NSS.PK_NonScrumStory
    LEFT JOIN Sprint SPT ON STY.SprintId = SPT.PK_Sprint
    LEFT JOIN Product PDT ON STY.ProductId = PDT.PK_Product
    LEFT JOIN ProductTeamUser PTU ON TSK.ProductTeamUserId = PTU.PK_ProductTeamUser
    LEFT JOIN [User] USR ON PTU.UserId = USR.PK_User
    LEFT JOIN OrganizationalTeam OLT ON USR.OrganizationalTeamId = OLT.PK_OrganizationalTeam
    LEFT JOIN UserAuthorization UAN1 ON (
            USR.PK_User = UAN1.UserId
            AND UAN1.Deleted IS NULL
            )
    WHERE DTH.PointPerson LIKE @userParam
        AND ActivityDate >= @startDateParam
        AND ActivityDate <= @endDateParam
        AND COALESCE(OLT.PK_OrganizationalTeam, '') LIKE @orgTeamPK
        AND UAN1.OrganizationalTeamId LIKE @teamId
    GROUP BY DTH.PointPerson
    HAVING SUM(DTH.[Hours]) > 0
    ) AS DerivedTable
        GROUP BY 
        DerivedTable.RowType, 
        DerivedTable.Person,
        DerivedTable.[Status],
        DerivedTable.OrganizationalTeam,
        DerivedTable.Project,
        DerivedTable.Sprint,
        DerivedTable.Story,
        DerivedTable.[Task],
        DerivedTable.MondayHours,
        DerivedTable.TuesdayHours,
        DerivedTable.WednesdayHours,
        DerivedTable.ThursdayHours,
        DerivedTable.FridayHours,
        DerivedTable.SaturdayHours,
        DerivedTable.SundayHours,
            DerivedTable.TotalHours

Answer 1

如何在外部查询中包装联合查询，然后使用聚合来获得更高的总列（简化为简洁）：

SELECT a.COL1, a.COL2, MAX(a.TOTAL) AS Total
FROM
(
   SELECT COL1, COL2, TOTAL 
   FROM TABLE1
   ...

   UNION ALL

   SELECT COL1, COL2, TOTAL 
   FROM TABLE2
   ...
) a

GROUP BY a.COL1，a.COL2

您还可以将其他聚合函数MIN / MAX用于您希望重复的其他列，并且您甚至可以将这些函数与CASE语句混合用于更复杂的方案。

将条件添加到UNION

1 个答案: