零返回，而不是空字符串

-1

USE SCRUMAPI2 

DECLARE @userParam VARCHAR(100) 
    ,@startDateParam DATETIME 
    ,@endDateParam DATETIME 
    ,@orgTeamPK VARCHAR(100) 
    ,@teamId VARCHAR(100) 
    ,@productId VARCHAR(100) 
    ,@search VARCHAR(200) 

SET @userParam = 'David Tunnell (tunnelld)' 
SET @startDateParam = '2013-10-21 00:00:00' 
SET @endDateParam = '2013-10-27 23:59:59' 
SET @orgTeamPK = '%' 
SET @teamId = '%' 
SET @productId = '%' 
SET @search = '%%' 

SELECT RowType AS RowType 
    ,Person AS Person 
    ,Project AS Project 
    ,ProjectType AS ProjectType 
    ,StoryNumber AS StoryNumber 
    ,StoryTitle AS StoryTitle 
    ,Effort AS Effort 
    ,Task AS Task 
    ,OriginalEstimateHours AS OriginalEstimateHours 
    ,MondayHours AS Monday 
    ,TuesdayHours AS Tuesday 
    ,WednesdayHours AS Wednesday 
    ,ThursdayHours AS Thursday 
    ,FridayHours AS Friday 
    ,SaturdayHours AS Saturday 
    ,SundayHours AS Sunday 
    ,TotalHours AS Total 
FROM (
    -- DATE DISPLAY 
    SELECT '1' AS RowType 
     ,'' AS Person 
     ,'' AS Project 
     ,'Category' AS ProjectType 
     ,'Incident #' AS StoryNumber 
     ,'' AS StoryTitle 
     ,'' AS Effort 
     ,'' AS Task 
     ,'' AS OriginalEstimateHours 
     ,'' AS Category 
     ,'' AS IncidentNumber 
     ,'' AS ApplicationName 
     ,(CASE WHEN DATEDIFF(d, @startDateParam, @endDateParam) >= 7 THEN '' WHEN DATEDIFF(d, @startDateParam, @endDateParam) <= 5 THEN '' WHEN DATEPART(dw, DATEADD(DAY, 0, @startDateParam)) = 2 THEN CONVERT(VARCHAR(10), DATEADD(DAY, 0, @startDateParam), 111) ELSE '' END) AS MondayHours 
     ,(CASE WHEN DATEDIFF(d, @startDateParam, @endDateParam) >= 7 THEN '' WHEN DATEDIFF(d, @startDateParam, @endDateParam) <= 5 THEN '' WHEN DATEPART(dw, DATEADD(DAY, 1, @startDateParam)) = 3 THEN CONVERT(VARCHAR(10), DATEADD(DAY, 1, @startDateParam), 111) ELSE '' END) AS TuesdayHours 
     ,(CASE WHEN DATEDIFF(d, @startDateParam, @endDateParam) >= 7 THEN '' WHEN DATEDIFF(d, @startDateParam, @endDateParam) <= 5 THEN '' WHEN DATEPART(dw, DATEADD(DAY, 2, @startDateParam)) = 4 THEN CONVERT(VARCHAR(10), DATEADD(DAY, 2, @startDateParam), 111) ELSE '' END) AS WednesdayHours 
     ,(CASE WHEN DATEDIFF(d, @startDateParam, @endDateParam) >= 7 THEN '' WHEN DATEDIFF(d, @startDateParam, @endDateParam) <= 5 THEN '' WHEN DATEPART(dw, DATEADD(DAY, 3, @startDateParam)) = 5 THEN CONVERT(VARCHAR(10), DATEADD(DAY, 3, @startDateParam), 111) ELSE '' END) AS ThursdayHours 
     ,(CASE WHEN DATEDIFF(d, @startDateParam, @endDateParam) >= 7 THEN '' WHEN DATEDIFF(d, @startDateParam, @endDateParam) <= 5 THEN '' WHEN DATEPART(dw, DATEADD(DAY, 4, @startDateParam)) = 6 THEN CONVERT(VARCHAR(10), DATEADD(DAY, 4, @startDateParam), 111) ELSE '' END) AS FridayHours 
     ,(CASE WHEN DATEDIFF(d, @startDateParam, @endDateParam) >= 7 THEN '' WHEN DATEDIFF(d, @startDateParam, @endDateParam) <= 5 THEN '' WHEN DATEPART(dw, DATEADD(DAY, 5, @startDateParam)) = 7 THEN CONVERT(VARCHAR(10), DATEADD(DAY, 5, @startDateParam), 111) ELSE '' END) AS SaturdayHours 
     ,(CASE WHEN DATEDIFF(d, @startDateParam, @endDateParam) >= 7 THEN '' WHEN DATEDIFF(d, @startDateParam, @endDateParam) <= 5 THEN '' WHEN DATEPART(dw, DATEADD(DAY, 6, @startDateParam)) = 1 THEN CONVERT(VARCHAR(10), DATEADD(DAY, 6, @startDateParam), 111) ELSE '' END) AS SundayHours 
     ,'' AS TotalHours 
    -- 

    UNION ALL 

    -- 
    -- GRAND TOTALS 
    -- 
    SELECT '2' AS RowType 
     ,'All Personnel' AS Person 
     ,'' AS Project 
     ,'' AS ProjectType 
     ,'' AS StoryNumber 
     ,'' AS StoryTitle 
     ,'' AS Effort 
     ,'Total:' AS Task 
     ,'' AS OriginalEstimateHours 
     ,'' AS Category 
     ,'' AS IncidentNumber 
     ,'' AS ApplicationName 
     ,CAST(SUM(CASE WHEN DATEPART(dw, DTH.ActivityDate) = 2 THEN DTH.[Hours] ELSE 0 END) AS VARCHAR(20)) AS Monday 
     ,CAST(SUM(CASE WHEN DATEPART(dw, DTH.ActivityDate) = 3 THEN DTH.[Hours] ELSE 0 END) AS VARCHAR(20)) AS Tuesday 
     ,CAST(SUM(CASE WHEN DATEPART(dw, DTH.ActivityDate) = 4 THEN DTH.[Hours] ELSE 0 END) AS VARCHAR(20)) AS Wednesday 
     ,CAST(SUM(CASE WHEN DATEPART(dw, DTH.ActivityDate) = 5 THEN DTH.[Hours] ELSE 0 END) AS VARCHAR(20)) AS Thursday 
     ,CAST(SUM(CASE WHEN DATEPART(dw, DTH.ActivityDate) = 6 THEN DTH.[Hours] ELSE 0 END) AS VARCHAR(20)) AS Friday 
     ,CAST(SUM(CASE WHEN DATEPART(dw, DTH.ActivityDate) = 7 THEN DTH.[Hours] ELSE 0 END) AS VARCHAR(20)) AS Saturday 
     ,CAST(SUM(CASE WHEN DATEPART(dw, DTH.ActivityDate) = 1 THEN DTH.[Hours] ELSE 0 END) AS VARCHAR(20)) AS Sunday 
     ,CAST(SUM(DTH.[Hours]) AS VARCHAR(20)) AS Total 
    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 UAN ON (
      PDT.PK_Product = UAN.ProductId 
      AND USR.OrganizationalTeamId = UAN.OrganizationalTeamId 
      AND UAN.Deleted IS NULL 
      ) 
    WHERE DTH.PointPerson LIKE @userParam 
     AND ActivityDate >= @startDateParam 
     AND ActivityDate <= @endDateParam 
     AND COALESCE(OLT.PK_OrganizationalTeam, '') LIKE @orgTeamPK 
     AND (
      COALESCE(UAN.ProductId, '') LIKE @productId 
      OR COALESCE(UAN.OrganizationalTeamId, '') LIKE @teamId 
      ) 
     AND (
      (
       STY.Number LIKE @search 
       OR STY.Number IS NULL 
       ) 
      OR (
       STY.Title LIKE @search 
       OR STY.Number IS NULL 
       ) 
      OR (
       TSK.NAME LIKE @search 
       OR STY.Number IS NULL 
       ) 
      ) 

    UNION ALL 

    -- 
    -- Details by PERSON, PROJECT, SPRINT, STORY, TASK 
    -- 
    SELECT '3' AS RowType 
     ,DTH.PointPerson AS Person 
     ,COALESCE(PDT.[Name], APP.AppName) AS Project 
     ,(
      CASE WHEN (
         STY.KanBanProductId IS NOT NULL 
         AND STY.SprintId IS NULL 
         ) THEN 'KanBan' WHEN (
         STY.KanBanProductId IS NULL 
         AND STY.SprintId IS NOT NULL 
         ) THEN 'Sprint' ELSE SCY.Catagory END 
      ) AS ProjectType 
     ,COALESCE(STY.[Number], NSS.IncidentNumber) AS StoryNumber 
     ,COALESCE(STY.Title, NSS.[Description]) AS StoryTitle 
     ,STY.Effort AS Effort 
     ,COALESCE(TSK.[Name], '') AS Task 
     ,TSK.OriginalEstimateHours AS OriginalEstimateHours 
     ,SCY.Catagory AS Category 
     ,NSS.IncidentNumber AS IncidentNumber 
     ,APP.AppName AS ApplicationName 
     ,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 SupportCatagory SCY ON NSS.CatagoryId = SCY.PK_SupportCatagory 
    LEFT JOIN [Application] APP ON NSS.ApplicationId = APP.PK_Application 
    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 UAN ON (
      PDT.PK_Product = UAN.ProductId 
      AND USR.OrganizationalTeamId = UAN.OrganizationalTeamId 
      AND UAN.Deleted IS NULL 
      ) 
    WHERE DTH.PointPerson LIKE @userParam 
     AND ActivityDate >= @startDateParam 
     AND ActivityDate <= @endDateParam 
     AND COALESCE(OLT.PK_OrganizationalTeam, '') LIKE @orgTeamPK 
     AND (
      COALESCE(UAN.ProductId, '') LIKE @productId 
      OR COALESCE(UAN.OrganizationalTeamId, '') LIKE @teamId 
      ) 
     AND (
      (
       STY.Number LIKE @search 
       OR STY.Number IS NULL 
       ) 
      OR (
       STY.Title LIKE @search 
       OR STY.Number IS NULL 
       ) 
      OR (
       TSK.NAME LIKE @search 
       OR STY.Number IS NULL 
       ) 
      ) 
    GROUP BY DTH.PointPerson 
     ,PDT.[Name] 
     ,SPT.[Name] 
     ,SPT.[Description] 
     ,STY.[Number] 
     ,STY.Title 
     ,TSK.[Name] 
     ,SCY.Catagory 
     ,NSS.IncidentNumber 
     ,APP.AppName 
     ,STY.KanBanProductId 
     ,STY.SprintId 
     ,NSS.[Description] 
     ,TSK.OriginalEstimateHours 
     ,STY.Effort 
    HAVING SUM(DTH.[Hours]) > 0 
    -- 

    UNION ALL 

    -- 
    -- Sub-TOTAL by PERSON 
    -- 
    SELECT '4' AS RowType 
     ,DTH.PointPerson AS Person 
     ,'' AS Project 
     ,'' AS ProjectType 
     ,'' AS StoryNumber 
     ,'' AS StoryTitle 
     ,'' AS Effort 
     ,'Subtotal:' AS Task 
     ,'' AS OriginalEstimateHours 
     ,'' AS Category 
     ,'' AS IncidentNumber 
     ,'' AS ApplicationName 
     ,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 SupportCatagory SCY ON NSS.CatagoryId = SCY.PK_SupportCatagory 
    LEFT JOIN [Application] APP ON NSS.ApplicationId = APP.PK_Application 
    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 UAN ON (
      PDT.PK_Product = UAN.ProductId 
      AND USR.OrganizationalTeamId = UAN.OrganizationalTeamId 
      AND UAN.Deleted IS NULL 
      ) 
    WHERE DTH.PointPerson LIKE @userParam 
     AND ActivityDate >= @startDateParam 
     AND ActivityDate <= @endDateParam 
     AND COALESCE(OLT.PK_OrganizationalTeam, '') LIKE @orgTeamPK 
     AND (
      COALESCE(UAN.ProductId, '') LIKE @productId 
      OR COALESCE(UAN.OrganizationalTeamId, '') LIKE @teamId 
      ) 
     AND (
      (
       STY.Number LIKE @search 
       OR STY.Number IS NULL 
       ) 
      OR (
       STY.Title LIKE @search 
       OR STY.Number IS NULL 
       ) 
      OR (
       TSK.NAME LIKE @search 
       OR STY.Number IS NULL 
       ) 
      ) 
    GROUP BY DTH.PointPerson 
    HAVING SUM(DTH.[Hours]) > 0 
    ) AS My_View 
ORDER BY Person 
    ,RowType 
    ,Project 
    ,ProjectType 
    ,StoryNumber 
    ,StoryTitle 
    ,Task

这是正在返回什么： enter image description here

我已经努力并设置为空OriginalEstimateHours但0返回。我怎样才能让这些单元变成空白？

来源

2013-11-01 David Tunnell

什么是Effort和OriginalEstimateHours的类型？我猜想某些数字，他们不允许是空的？您可能想要返回一个伪造号码，例如-99以显示它实际上是“false” – Dave

您发布的查询与您显示的结果集不匹配。 “Category”，“IncidentNumber”等去了哪里？ 'MondayHours'已经成为'Monday' –

他们的类型是INT和BIGINT，这可能就是为什么会出现这种情况。但我仍然希望它是空的。 –

我怀疑STY.Effort和TSK.OriginalEstimateHours（SELECT子句中的行为RowType 3）是数字。

从文档UNION：

作为UNION操作的一部分列的定义不必相同，但它们必须通过隐式转换兼容。 当数据类型不同时，结果数据类型根据data type precedence的规则确定。

（我强调）

裹那些列在CONVERT(varchar(20),STY.Effort)以便选择用于这些列类型是varchar而不是数字类型。

来源

2013-11-01 14:35:57

它们的类型INT和BIGINT，

如果你想要一个空字符串，而不是0或NULL，您将需要使用CAST或CONVERT功能列转换为VARCHAR类型。您不能在数字列中输入空字符串。您可能还需要使用CASE语句将0字符串转换为空字符串。

来源

2013-11-01 14:33:14

当您分配空字符串时，取决于数据类型，它将转换为不同的值。 0表示整数，1900-01-01表示日期等。请参阅此处了解更多信息 http://beyondrelational.com/modules/2/blogs/70/posts/10841/empty-string-and-default-values.aspx

来源

2013-11-01 14:41:59 Madhivanan

零返回，而不是空字符串

回答

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