在SQL中拆分重叠日期
我在SQLServer2008R2上 我正在尝试为特定时期（通常为30-90天）的制造资源活动创建报告和图表 根据运行时间（例如4天）创建作业。如果周末未工作，且上述作业在周五开始，则资源的活动需要显示1天运行、2天停止、3天运行，而生产计划程序不必将其设置为两个作业。我在一个表格中有工作日程安排，在另一个表格中有停工时间，所以把DT想象成某种日历表格。通常，在提供结束时间时，会考虑到停机时间 因此，我需要查询为此作业创建3个日期时间范围：周五跑步、周六、日落、周一、周二、周三跑步。注意：单个作业可以有多个停机事件 在这件事上兜圈子已经有一段时间了。我相信有一种优雅的方式可以做到：我就是找不到。我发现了好几个类似的帖子，但都不能应用到我的案例中，或者至少可以；我不能让他们工作 以下是一些样本日期和预期结果。我希望解释和示例数据是清楚的在SQL中拆分重叠日期,sql,date,datetime,sql-server-2008-r2,Sql,Date,Datetime,Sql Server 2008 R2,我在SQLServer2008R2上 我正在尝试为特定时期（通常为30-90天）的制造资源活动创建报告和图表 根据运行时间（例如4天）创建作业。如果周末未工作，且上述作业在周五开始，则资源的活动需要显示1天运行、2天停止、3天运行，而生产计划程序不必将其设置为两个作业。我在一个表格中有工作日程安排，在另一个表格中有停工时间，所以把DT想象成某种日历表格。通常，在提供结束时间时，会考虑到停机时间 因此，我需要查询为此作业创建3个日期时间范围：周五跑步、周六、日落、周一、周二、周三跑步。注意：单个作
-- Create tables to work with / Source and Destination
CREATE TABLE #Jobs
(
ResourceID int
,JobNo VARCHAR(10)
,startdate SMALLDATETIME
,enddate SMALLDATETIME
)
CREATE TABLE #Downtime
(
ResourceID INT
,Reason VARCHAR(10)
,startdate SMALLDATETIME
,enddate SMALLDATETIME
)
CREATE TABLE #Results
(
ResourceID INT
,Activity VARCHAR(10)
,startdate SMALLDATETIME
,enddate SMALLDATETIME
,ActivityType varchar(1)
)
-- Job Schedule
INSERT INTO [#Jobs]
(
[ResourceID],
[JobNo],
startdate
,enddate
)
SELECT 1, 'J1', '2014-04-01 08:00' ,'2014-04-01 17:00'
UNION ALL
SELECT 1, 'J2', '2014-04-01 17:00' , '2014-04-01 23:00'
UNION ALL
SELECT 2, 'J3', '2014-04-01 08:00' ,'2014-04-01 23:00'
UNION ALL
SELECT 3, 'J4', '2014-04-01 08:00' ,'2014-04-01 09:00'
SELECT * FROM #jobs
-- Downtime Scehdule
INSERT INTO [#Downtime]
(
[ResourceID],
Reason,
startdate
,enddate
)
SELECT 1, 'DOWN', '2014-04-01 10:00' ,'2014-04-01 11:00'
UNION ALL
SELECT 1, 'DOWN', '2014-04-01 21:00' , '2014-04-01 22:00'
UNION ALL
SELECT 2, 'DOWN', '2014-04-01 10:00' ,'2014-04-01 11:00'
UNION ALL
SELECT 2, 'DOWN', '2014-04-01 21:00' , '2014-04-01 22:00'
UNION ALL
SELECT 3, 'DOWN', '2014-04-01 10:00' ,'2014-04-01 11:00'
UNION ALL
SELECT 3, 'DOWN', '2014-04-01 21:00' , '2014-04-01 22:00'
SELECT * FROM #Downtime
-- Expected Results
INSERT INTO [#Results]
(
Activity,
[ResourceID],
startdate
,enddate
,[ActivityType]
)
SELECT 'J1', 1, '2014-04-01 08:00' ,'2014-04-01 10:00', 'P'
UNION ALL
SELECT 'DOWN', 1, '2014-04-01 10:00' , '2014-04-01 11:00', 'D'
UNION ALL
SELECT 'J1', 1, '2014-04-01 11:00' ,'2014-04-01 17:00', 'P'
UNION ALL
SELECT 'J2', 1, '2014-04-01 17:00' , '2014-04-01 21:00', 'P'
UNION ALL
SELECT 'DOWN', 1, '2014-04-01 21:00' , '2014-04-01 22:00', 'D'
UNION ALL
SELECT 'J2', 1, '2014-04-01 22:00' ,'2014-04-01 23:00', 'P'
UNION ALL
SELECT 'J3', 2, '2014-04-01 08:00' ,'2014-04-01 10:00', 'P'
UNION ALL
SELECT 'DOWN', 2, '2014-04-01 10:00' , '2014-04-01 11:00', 'D'
UNION ALL
SELECT 'J3', 2, '2014-04-01 11:00' ,'2014-04-01 21:00', 'P'
UNION ALL
SELECT 'DOWN', 2, '2014-04-01 21:00' , '2014-04-01 22:00', 'D'
UNION ALL
SELECT 'J3', 2, '2014-04-01 22:00' ,'2014-04-01 23:00', 'P'
UNION ALL
SELECT 'J4', 3, '2014-04-01 08:00' ,'2014-04-01 09:00', 'P'
UNION ALL
SELECT 'DOWN', 3, '2014-04-01 10:00' , '2014-04-01 11:00', 'D'
UNION ALL
SELECT 'DOWN', 3, '2014-04-01 21:00' , '2014-04-01 22:00', 'D'
SELECT * FROM #Results
ORDER BY [ResourceID], Startdate
DELETE FROM #Results
WITH cte
AS ( SELECT
ROW_NUMBER() OVER ( ORDER BY ResourceID, dt ) AS Rno
,x.ResourceID
,x.Activity
,Dt
,xdt.ActivityType
FROM
(
SELECT
ResourceID
,JobNo AS Activity
,startdate
,enddate
,'P' AS ActivityType
FROM #Jobs
UNION ALL
SELECT
ResourceID
,Reason AS Activity
,startdate
,enddate
,'D' AS ActivityType
FROM #Downtime
) AS x
CROSS APPLY
(
VALUES ( x.startdate, x.ActivityType),
( x.enddate, x.ActivityType) ) AS xdt
( Dt, ActivityType )
)
SELECT
x.ResourceID
,CASE WHEN x.Activity > x1.Activity THEN x.Activity
ELSE x1.Activity
END AS Activity
,x.dt AS StartDate
,x1.Dt AS EndDate
,CASE WHEN x.ActivityType > x1.ActivityType THEN x.ActivityType
ELSE x1.ActivityType
END AS activitytype
FROM
cte AS x
LEFT OUTER JOIN cte AS x1 ON x.ResourceID = x1.ResourceID
AND x.Rno = x1.Rno - 1
WHERE
x1.Dt IS NOT NULL
AND x1.Dt <> x.Dt;
标记事实上，您已经非常接近了—实际上，您不想在最初的CTE中做任何事情，而是希望稍后返回原始数据。本质上，您正在执行一个变体。 下面的查询将为您提供所需的内容：
WITH AllDates AS (SELECT a.*, ROW_NUMBER() OVER(PARTITION BY resourceId ORDER BY rangeDate) AS rn
FROM (SELECT resourceId, startDate
FROM Jobs
UNION ALL
SELECT resourceId, endDate
FROM Jobs
UNION ALL
SELECT resourceId, startDate
FROM Downtime
UNION ALL
SELECT resourceId, endDate
FROM DownTime) a(resourceId, rangeDate)),
Range AS (SELECT startRange.resourceId,
startRange.rangeDate AS startDate, endRange.rangeDate AS endDate
FROM AllDates startRange
JOIN AllDates endRange
ON endRange.resourceId = startRange.resourceId
AND endRange.rn = startRange.rn + 1
AND endRange.rangeDate <> startRange.rangeDate)
SELECT Range.resourceId, Range.startDate, Range.endDate,
COALESCE(Downtime.reason, Jobs.jobNo) as activity
FROM Range
LEFT JOIN Jobs
ON Jobs.resourceId = Range.resourceId
AND Jobs.startDate <= Range.startDate
AND Jobs.endDate >= Range.endDate
LEFT JOIN Downtime
ON Downtime.resourceId = Range.resourceId
AND Downtime.startDate <= Range.startDate
AND Downtime.endDate >= Range.endDate
WHERE Jobs.jobNo IS NOT NULL
OR Downtime.reason IS NOT NULL
哪一个平台和版本是您的db，尽管它可能是SQL Server发行版之一，但哪一个？你提到了日期，但你的数据只是在时间上有所不同，是哪一个？您是在尝试将数据插入作业和停机时间，还是只是构建报告？一张日历表在这里会非常有用-你有一张，对吗？到目前为止，您尝试了哪些不起作用的方法？不过，感谢您很好地设置了开始/结果数据。作为旁注，结束日期几乎总是派生信息，是其他一些状态开始的瞬间。@Clockwork缪斯感谢您的回复。真不敢相信我居然忘了提到站台。到目前为止，我已经尝试使用多个CTE，将所有内容合并到一个表中-没有一个接近，所以没有；I don’我不认为这是值得的。我忘了提到结束时间。你是对的，通常你必须根据开始持续时间和停止时间来计算。但在这种情况下，提供的结束时间考虑了停机时间。几乎就像它的历史数据一样：J1开始于时间A，结束于时间B，包括停机时间。停机时间是分开记录的。那么，您尝试过哪些不起作用的，以及它是如何让您失败的？“我仍然不清楚您是在尝试为这两个表构建条目，还是仅仅需要一个SELECT语句来构建结果，本质上是这样的。”Clockwork Muse说。我添加了我的最新结果和失败的细节。我有两个表，分别是作业和停机时间，并试图构建结果，即给定日期范围内ResourceX上的活动-结果见上图
WITH cte
AS ( SELECT
ROW_NUMBER() OVER ( ORDER BY ResourceID, dt ) AS Rno
,x.ResourceID
,x.Activity
,Dt
,xdt.ActivityType
FROM
(
SELECT
ResourceID
,JobNo AS Activity
,startdate
,enddate
,'P' AS ActivityType
FROM #Jobs
UNION ALL
SELECT
ResourceID
,Reason AS Activity
,startdate
,enddate
,'D' AS ActivityType
FROM #Downtime
) AS x
CROSS APPLY
(
VALUES ( x.startdate, x.ActivityType),
( x.enddate, x.ActivityType) ) AS xdt
( Dt, ActivityType )
)
SELECT
x.ResourceID
,CASE WHEN x.Activity > x1.Activity THEN x.Activity
ELSE x1.Activity
END AS Activity
,x.dt AS StartDate
,x1.Dt AS EndDate
,CASE WHEN x.ActivityType > x1.ActivityType THEN x.ActivityType
ELSE x1.ActivityType
END AS activitytype
FROM
cte AS x
LEFT OUTER JOIN cte AS x1 ON x.ResourceID = x1.ResourceID
AND x.Rno = x1.Rno - 1
WHERE
x1.Dt IS NOT NULL
AND x1.Dt <> x.Dt;
WITH AllDates AS (SELECT a.*, ROW_NUMBER() OVER(PARTITION BY resourceId ORDER BY rangeDate) AS rn
FROM (SELECT resourceId, startDate
FROM Jobs
UNION ALL
SELECT resourceId, endDate
FROM Jobs
UNION ALL
SELECT resourceId, startDate
FROM Downtime
UNION ALL
SELECT resourceId, endDate
FROM DownTime) a(resourceId, rangeDate)),
Range AS (SELECT startRange.resourceId,
startRange.rangeDate AS startDate, endRange.rangeDate AS endDate
FROM AllDates startRange
JOIN AllDates endRange
ON endRange.resourceId = startRange.resourceId
AND endRange.rn = startRange.rn + 1
AND endRange.rangeDate <> startRange.rangeDate)
SELECT Range.resourceId, Range.startDate, Range.endDate,
COALESCE(Downtime.reason, Jobs.jobNo) as activity
FROM Range
LEFT JOIN Jobs
ON Jobs.resourceId = Range.resourceId
AND Jobs.startDate <= Range.startDate
AND Jobs.endDate >= Range.endDate
LEFT JOIN Downtime
ON Downtime.resourceId = Range.resourceId
AND Downtime.startDate <= Range.startDate
AND Downtime.endDate >= Range.endDate
WHERE Jobs.jobNo IS NOT NULL
OR Downtime.reason IS NOT NULL
RESOURCEID STARTDATE ENDDATE ACTIVITY
----------------------------------------------------------------------------
1 2014-04-01 08:00:00 2014-04-01 10:00:00 J1
1 2014-04-01 10:00:00 2014-04-01 11:00:00 DOWN
1 2014-04-01 11:00:00 2014-04-01 17:00:00 J1
1 2014-04-01 17:00:00 2014-04-01 21:00:00 J2
1 2014-04-01 21:00:00 2014-04-01 22:00:00 DOWN
1 2014-04-01 22:00:00 2014-04-01 23:00:00 J2
2 2014-04-01 08:00:00 2014-04-01 10:00:00 J3
2 2014-04-01 10:00:00 2014-04-01 11:00:00 DOWN
2 2014-04-01 11:00:00 2014-04-01 21:00:00 J3
2 2014-04-01 21:00:00 2014-04-01 22:00:00 DOWN
2 2014-04-01 22:00:00 2014-04-01 23:00:00 J3
3 2014-04-01 08:00:00 2014-04-01 09:00:00 J4
3 2014-04-01 10:00:00 2014-04-01 11:00:00 DOWN
3 2014-04-01 21:00:00 2014-04-01 22:00:00 DOWN