添加附加行

我有如下数据（视图）：添加附加行

Declare @YourTable table ([Event] varchar(100),[Start] DateTime,[End] DateTime, [Tag] varchar(25)) 
    Insert Into @YourTable values 
    ('10PIC700422.PV 10-PSV-700073A 10-PSV-700073B','9/9/16 10:44:05.000','9/9/16 10:48:08.000','Big'), 
    ('10PIC700422.PV 10-PSV-700073A 10-PSV-700073B','9/9/16 10:44:10.000','9/9/16 10:49:40.000','Big'), 
    ('10PIC700422.PV 10-PSV-700073A 10-PSV-700073B','9/9/16 10:50:03.000','9/9/16 10:51:04.000','Small'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 12:51:07.000','4/4/16 13:58:09.000','Big'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 14:04:04.000','4/4/16 14:29:00.000','Small'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 14:51:02.000','4/4/16 14:58:00.000','Big'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 15:04:06.000','4/4/16 15:29:08.000','Small'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4-4-16 15:45:08.000','4-4-16 15:55:09.000','Big'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4-4-16 16:22:08.000','4-4-16 16:40:09.000','Big'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 16:50:04.000','4/4/16 16:55:00.000','Small'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 17:05:02.000','4/4/16 17:20:00.000','Big'), 
    ('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 17:22:06.000','4/4/16 17:29:08.000','Small'), 
    ('11PIC41010.PV 11-PSV-401002W 11-PSV-401002D','4/4/16 16:04:01.000','4/4/16 16:45:00.000','Big');

我用下面的查询通过事件和秩序由开始得到结果我需要，组，变大变小后大时小云：

Select [Event] 
    ,[Start] 
    ,[End] 
    ,[Tag] 
    ,[Tag_new] = case when Tag='Big' and 'Small' = Lead(Tag,1,Tag) over (Partition By Event Order By Start) then 'Small' else tag end 
    From @YourTable 

             Event Start     End      Tag Tag_new 
10PIC700422.PV 10-PSV-700073A 10-PSV-700073B 2016-09-09 10:44:05.000 2016-09-09 10:48:08.000 Big Big 
10PIC700422.PV 10-PSV-700073A 10-PSV-700073B 2016-09-09 10:44:10.000 2016-09-09 10:49:40.000 Big Small 
10PIC700422.PV 10-PSV-700073A 10-PSV-700073B 2016-09-09 10:50:03.000 2016-09-09 10:51:04.000 Small Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 12:51:07.000 2016-04-04 13:58:09.000 Big Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 14:04:04.000 2016-04-04 14:29:00.000 Small Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 14:51:02.000 2016-04-04 14:58:00.000 Big Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 15:04:06.000 2016-04-04 15:29:08.000 Small Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 15:45:08.000 2016-04-04 15:55:09.000 Big Big 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 16:22:08.000 2016-04-04 16:40:09.000 Big Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 16:50:04.000 2016-04-04 16:55:00.000 Small Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 17:05:02.000 2016-04-04 17:20:00.000 Big Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 17:22:06.000 2016-04-04 17:29:08.000 Small Small 
11PIC41010.PV 11-PSV-401002W 11-PSV-401002D  2016-04-04 16:04:01.000 2016-04-04 16:45:00.000 Big Big

我需要申请多一个例外，每当序列标签栏下方出现一组，应该经过小前大与开始时间，结束时间和Tag_new添加相应的aditional的行，开始时间应该是1秒比之前的日期晚，endtime和endtime比starttime晚1秒d Tag_new是 “坏”：

Small 
Big 
Small

我想获得像下面的东西：

         Event Start     End      Tag Tag_new 
10PIC700422.PV 10-PSV-700073A 10-PSV-700073B 2016-09-09 10:44:05.000 2016-09-09 10:48:08.000 Big Big 
10PIC700422.PV 10-PSV-700073A 10-PSV-700073B 2016-09-09 10:44:10.000 2016-09-09 10:49:40.000 Big Small 
10PIC700422.PV 10-PSV-700073A 10-PSV-700073B 2016-09-09 10:50:03.000 2016-09-09 10:51:04.000 Small Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 12:51:07.000 2016-04-04 13:58:09.000 Big Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 14:04:04.000 2016-04-04 14:29:00.000 Small Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 14:29:01.000 2016-04-04 14:29:02.000 Bad Bad 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 14:51:02.000 2016-04-04 14:58:00.000 Big Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 15:04:06.000 2016-04-04 15:29:08.000 Small Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 15:45:08.000 2016-04-04 15:55:09.000 Big Big 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 16:22:08.000 2016-04-04 16:40:09.000 Big Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 16:50:04.000 2016-04-04 16:55:00.000 Small Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 16:55:01.000 2016-04-04 16:55:02.000 Bad Bad 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 17:05:02.000 2016-04-04 17:20:00.000 Big Small 
11PIC41010.PV 11-PSV-401002A 11-PSV-401002B  2016-04-04 17:22:06.000 2016-04-04 17:29:08.000 Small Small 
11PIC41010.PV 11-PSV-401002W 11-PSV-401002D  2016-04-04 16:04:01.000 2016-04-04 16:45:00.000 Big Big

来源

2016-10-17 Joe Green

我投了这个票，因为问题相当好。有示例代码来复制'n'paste，自己的努力和一个非常明确的解释。整个方法闻起来有点尴尬 - 复杂... SQL Server可能不是最好的工具。但是这个问题本身并不值得“因为不清楚”而得到“不公平”，也不值得投票。只有我2美分... – Shnugo

感谢Shnugo为其投票 –

为什么你要转贴这个问题，这里回答了这个问题：http://stackoverflow.com/questions/40026002/group-and-order-with-additional-exception/40027420#40027420？ – iamdave

这样的设计味道，但你可以尝试这样的事：

你应该避免文化特定的日期文字！

Declare @YourTable table ([Event] varchar(100),[Start] DateTime,[End] DateTime, [Tag] varchar(25)) 
Insert Into @YourTable values 
('10PIC700422.PV 10-PSV-700073A 10-PSV-700073B','9/9/16 10:44:05.000','9/9/16 10:48:08.000','Big'), 
('10PIC700422.PV 10-PSV-700073A 10-PSV-700073B','9/9/16 10:44:10.000','9/9/16 10:49:40.000','Big'), 
('10PIC700422.PV 10-PSV-700073A 10-PSV-700073B','9/9/16 10:50:03.000','9/9/16 10:51:04.000','Small'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 12:51:07.000','4/4/16 13:58:09.000','Big'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 14:04:04.000','4/4/16 14:29:00.000','Small'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 14:51:02.000','4/4/16 14:58:00.000','Big'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 15:04:06.000','4/4/16 15:29:08.000','Small'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4-4-16 15:45:08.000','4-4-16 15:55:09.000','Big'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4-4-16 16:22:08.000','4-4-16 16:40:09.000','Big'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 16:50:04.000','4/4/16 16:55:00.000','Small'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 17:05:02.000','4/4/16 17:20:00.000','Big'), 
('11PIC41010.PV 11-PSV-401002A 11-PSV-401002B','4/4/16 17:22:06.000','4/4/16 17:29:08.000','Small'), 
('11PIC41010.PV 11-PSV-401002W 11-PSV-401002D','4/4/16 16:04:01.000','4/4/16 16:45:00.000','Big');

- 增加一个正在运行的行数来查询并为所有original行

WITH YourQueryEnhanced AS 
(
    Select [Event] 
    ,[Start] 
    ,[End] 
    ,[Tag] 
    ,[Tag_new] = case when Tag='Big' and 'Small' = Lead(Tag,1,Tag) over (Partition By [Event] Order By Start) then 'Small' else tag end 
    ,ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) AS SortInx --You should put a secure ORDER BY here!!! 
    ,0 AS InnerSortInx 
    From @YourTable 
)

--USE LAG()检测到您的序列0。重叠的坏序列有一个问题！

,BadMarked AS 
(
    SELECT * 
     ,CASE WHEN LAG([Tag],1) OVER(Order By SortInx)='Small' 
       AND LAG([Tag],2) OVER(Order By SortInx)='Big' 
       AND LAG([Tag],3) OVER(Order By SortInx)='Small' THEN 1 ELSE 0 END AS BadSequence 

    FROM YourQueryEnhanced 
)

- 这将选择所有original行，将增加一个bad一行标记为BadSequence每一行。该SortInx设置为上一个值，内sortInx设置为1，因此ORDER BY将推动在适当的位置bad行

SELECT * 
    FROM BadMarked 

    UNION ALL 

    SELECT [Event],[Start],[End],'Bad','Bad',SortInx-1,1,2 
    FROM BadMarked 
    WHERE BadMarked.BadSequence=1 
    ORDER BY SortInx,InnerSortInx

注意

这将增加一个更坏的一行到你的结果，正如你在预期的结果中所说的那样。

原因是你的线条3到7，你有小，大，小，大，小。中间small属于两个序列。

必须要么在地方有更多的逻辑解决这个（多次调用LAG()看进一步回），其中检测到不良序列，或者你包的最后选择为一个更CTE和再次使用LAG()去除坏你不想要的行。

来源

2016-10-17 09:09:58 Shnugo

Shnugo，感谢代码，但这似乎不是我需要的。 –

@JoeGreen，请详细说明......为什么不呢？ – Shnugo

好吧，我会尝试处理额外的行（仍然不知道该怎么做），那么在starttime和endtime中添加1秒是什么？ –

@Shnugo：你真的很亲密。感谢解决方案！

WITH YourQueryEnhanced AS 
(
Select [Event] 
,[Start] 
,[End] 
,[Tag] 
,[Tag_new] = case when Tag='Big' and 'Small' = Lead(Tag,1,Tag) over (Partition By [Event] Order By Start) then 'Small' else tag end 
,ROW_NUMBER() OVER(Partition By [Event] Order By Start) AS SortInx --You  should put a secure ORDER BY here!!! 
,0 AS InnerSortInx 
From @YourTable 
), BadMarked AS 
(
SELECT * 
    ,CASE WHEN LAG([Tag],1) OVER(Order By SortInx)='Small' 
      AND LAG([Tag],2) OVER(Order By SortInx)='Big' 
      AND LAG([Tag],3) OVER(Order By SortInx)='Big' THEN 1 ELSE 0 END  AS BadSequence 
FROM YourQueryEnhanced 
) 
select * from 
(
SELECT * 
FROM BadMarked 
UNION ALL 
    SELECT [Event],DATEADD(s, -1, [Start]) [Start], [End],'Bad','Bad',SortInx-1,1,2 
FROM BadMarked 
WHERE BadMarked.BadSequence=1 
) a order by [Event] 
,[Start]

来源

2016-10-18 12:02:00

Hi Shnugo，我找不到按钮“接受”。 –

接受了它。再次感谢Shnugo！ –

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