T/SQL - 时间相关计算

Question

IF OBJECT_ID('Tempdb..#TempTable') IS NOT NULL 
    DROP TABLE #TempTable
CREATE TABLE #TempTable
    (
      [ID] INT NOT NULL ,
      [Value] VARCHAR(50) NULL ,
      [Date] DATE NULL ,
      [Time] TIME(7) NULL ,
      [Duration] INT NULL ,
      [srcFile] VARCHAR(50) NULL,   
    )
INSERT  #TempTable
        ( [ID], [Value], [Date], [Time], [Duration], [srcFile] )
VALUES  ( 1, N'One', CAST(N'2014-07-29' AS DATE), CAST(N'23:34:00' AS TIME), 1710, N'sF1' ),
        ( 2, N'One', CAST(N'2014-07-30' AS DATE), CAST(N'00:00:10' AS TIME), 1710, N'sF1' ),
        ( 3, N'One', CAST(N'2014-07-30' AS DATE), CAST(N'01:30:00' AS TIME), 1710, N'sF1' ),
        ( 4, N'One', CAST(N'2014-07-30' AS DATE), CAST(N'01:54:00' AS TIME), 1710, N'sF1' ),
        ( 5, N'One', CAST(N'2014-07-30' AS DATE), CAST(N'13:30:00' AS TIME), 1710, N'sF1' ),
        ( 6, N'One', CAST(N'2014-07-30' AS DATE), CAST(N'13:57:00' AS TIME), 1710, N'sF2' ),
        ( 7, N'One', CAST(N'2014-07-30' AS DATE), CAST(N'23:34:00' AS TIME), 1710, N'sF1' ),
        ( 8, N'One', CAST(N'2014-07-31' AS DATE), CAST(N'00:00:10' AS TIME), 1710, N'sF2' ),
        ( 9, N'One', CAST(N'2014-07-31' AS DATE), CAST(N'00:10:10' AS TIME), 1710, N'sF3' ),
        ( 10, N'One', CAST(N'2014-08-01' AS DATE), CAST(N'00:00:00' AS TIME), 1710, N'sF2' ),
        ( 11, N'One', CAST(N'2014-08-01' AS DATE), CAST(N'00:00:00' AS TIME), 1710, N'sF1' ),
        ( 12, N'One', CAST(N'2014-08-01' AS DATE), CAST(N'01:00:00' AS TIME), 1710, N'sF3' ),
        ( 13, N'One', CAST(N'2014-08-01' AS DATE), CAST(N'01:00:00' AS TIME), 1710, N'sF4' ),
        ( 14, N'Two', CAST(N'2014-08-01' AS DATE), CAST(N'00:01:00' AS TIME), 1710, N'sF2' )

SELECT  *
FROM    #TempTable

基地Table

ID  Value   Date    Time        Duration    srcFile
1   One 7/29/2014   23:34:00    1710        sF1
2   One 7/30/2014   0:00:10     1710        sF1
3   One 7/30/2014   1:30:00     1710        sF1
4   One 7/30/2014   1:54:00     1710        sF1
5   One 7/30/2014   13:30:00    1710        sF1
6   One 7/30/2014   13:57:00    1710        sF2
7   One 7/30/2014   23:34:00    1710        sF1
8   One 7/31/2014   0:00:10     1710        sF2
9   One 8/1/2014    0:00:00     1710        sF2
10  Two 8/1/2014    0:01:00     1710        sF2
11  One 8/1/2014    0:00:00     1710        sF1

要求：

当 [Value] + [Date] + [Time] 匹配时 Dup 输出：用 1 标记 isDup 标志，用 srcFile 标记 dupFIle，用于 dup 条件匹配的两个或多个记录。

当[Value]匹配且任意两条或多条记录的[Date]+[Time]都在[Date]+[Time]PLUS(+)[Duration]内时Overlap（注：当所有匹配的记录都是DUP......它们也不能重叠......但重叠可以有至少一个独特的记录和落在持续时间范围内的多个重复）。输出：用 1 标记 isOverlap 标志，用 srcFile 标记 overlapFile，用于重叠条件匹配的两个或多个记录。

这是我试过的

;WITH dupCTE AS (
SELECT ID, Value, [Date], [Time], Duration, srcFile
        ,CASE
            WHEN COUNT(*) OVER (PARTITION BY  Value, [Date], [Time]) > 1 THEN 1
            ELSE 0
        END AS isDup
        ,CASE WHEN COUNT(*) OVER (PARTITION BY  Value, [Date], [Time]) > 1 THEN STUFF((SELECT ' - ' + srcFile 
                                FROM #TempTable T 
                                WHERE T.Value = TT.Value
                                    AND T.[Date] = TT.[Date]
                                    AND T.[Time] = TT.[Time]
                                FOR XML PATH('')), 1, 3, '')
            ELSE NULL 
            END AS dupFIle
FROM #TempTable TT
)
, overlapCTE AS (
SELECT A. ID, A.Value, A.[Date], A.[Time], A.Duration, A.srcFile, A.isDup, A.dupFIle
        ,CASE WHEN B.ID IS NOT NULL THEN 1 
                      ELSE 0 
        END AS 'isOverlap'
        ,CASE WHEN b.ID IS NOT NULL THEN STUFF((SELECT ' - ' + srcFile 
                    FROM #TempTable T
                    WHERE T.Value = A.Value 
                        AND  ((CAST(CAST(B.[Date] AS VARCHAR(10)) + ' ' + CAST(B.[Time] AS VARCHAR(16)) AS DateTime2) > CAST(CAST(A.[Date] AS VARCHAR(10)) + ' ' + CAST(A.[Time] AS VARCHAR(16)) AS DateTime2)  AND CAST(CAST(B.[Date] AS VARCHAR(10)) + ' ' + CAST(B.[Time] AS VARCHAR(16)) AS DateTime2) < DATEADD(SECOND, A.Duration, CAST(CAST(A.[Date] AS VARCHAR(10)) + ' ' + CAST(A.[Time] AS VARCHAR(16)) AS DateTime2)))
                        OR    (CAST(CAST(A.[Date] AS VARCHAR(10)) + ' ' + CAST(A.[Time] AS VARCHAR(16)) AS DateTime2) > CAST(CAST(B.[Date] AS VARCHAR(10)) + ' ' + CAST(B.[Time] AS VARCHAR(16)) AS DateTime2)  AND CAST(CAST(A.[Date] AS VARCHAR(10)) + ' ' + CAST(A.[Time] AS VARCHAR(16)) AS DateTime2) < DATEADD(SECOND, B.Duration, CAST(CAST(B.[Date] AS VARCHAR(10)) + ' ' + CAST(B.[Time] AS VARCHAR(16)) AS DateTime2))))
                    FOR XML PATH('')), 1, 3, '')
        ELSE NULL 
        END AS 'overlapFiles'
FROM dupCTE A LEFT JOIN dupCTE B
  ON   A.Value = B.Value
      AND  ((CAST(CAST(B.[Date] AS VARCHAR(10)) + ' ' + CAST(B.[Time] AS VARCHAR(16)) AS DateTime2) > CAST(CAST(A.[Date] AS VARCHAR(10)) + ' ' + CAST(A.[Time] AS VARCHAR(16)) AS DateTime2)  AND CAST(CAST(B.[Date] AS VARCHAR(10)) + ' ' + CAST(B.[Time] AS VARCHAR(16)) AS DateTime2) < DATEADD(SECOND, A.Duration, CAST(CAST(A.[Date] AS VARCHAR(10)) + ' ' + CAST(A.[Time] AS VARCHAR(16)) AS DateTime2))) 
      OR    (CAST(CAST(A.[Date] AS VARCHAR(10)) + ' ' + CAST(A.[Time] AS VARCHAR(16)) AS DateTime2) > CAST(CAST(B.[Date] AS VARCHAR(10)) + ' ' + CAST(B.[Time] AS VARCHAR(16)) AS DateTime2)  AND CAST(CAST(A.[Date] AS VARCHAR(10)) + ' ' + CAST(A.[Time] AS VARCHAR(16)) AS DateTime2) < DATEADD(SECOND, B.Duration, CAST(CAST(B.[Date] AS VARCHAR(10)) + ' ' + CAST(B.[Time] AS VARCHAR(16)) AS DateTime2))))
WHERE A.isDup = 1 OR 
B.ID IS NOT NULL 
)

SELECT * FROM overlapCTE
DROP TABLE #TempTable

当前输出

ID  Value   Date            Time        Duration    srcFile     isDup   dupFIle     isOverlap   overlapFiles
1   One     2014-07-29      23:34:00    1710        sF1         0       NULL        1           sF1 - sF1 - sF1 - sF1 - sF1 - sF2 - sF1 - sF2 - sF2 - sF1
2   One     2014-07-30      00:00:10    1710        sF1         0       NULL        1           sF1 - sF1 - sF1 - sF1 - sF1 - sF2 - sF1 - sF2 - sF2 - sF1
3   One     2014-07-30      01:30:00    1710        sF1         0       NULL        1           sF1 - sF1 - sF1 - sF1 - sF1 - sF2 - sF1 - sF2 - sF2 - sF1
4   One     2014-07-30      01:54:00    1710        sF1         0       NULL        1           sF1 - sF1 - sF1 - sF1 - sF1 - sF2 - sF1 - sF2 - sF2 - sF1
5   One     2014-07-30      13:30:00    1710        sF1         0       NULL        1           sF1 - sF1 - sF1 - sF1 - sF1 - sF2 - sF1 - sF2 - sF2 - sF1
6   One     2014-07-30      13:57:00    1710        sF2         0       NULL        1           sF1 - sF1 - sF1 - sF1 - sF1 - sF2 - sF1 - sF2 - sF2 - sF1
7   One     2014-07-30      23:34:00    1710        sF1         0       NULL        1           sF1 - sF1 - sF1 - sF1 - sF1 - sF2 - sF1 - sF2 - sF2 - sF1
8   One     2014-07-31      00:00:10    1710        sF2         0       NULL        1           sF1 - sF1 - sF1 - sF1 - sF1 - sF2 - sF1 - sF2 - sF2 - sF1
9   One     2014-08-01      00:00:00    1710        sF2         1       sF2 - sF1   0           NULL
11  One     2014-08-01      00:00:00    1710        sF1         1       sF2 - sF1   0           NULL

期望的输出

ID  Value   Date            Time        Duration    srcFile     isDup       dupFIle     isOverLap       overlapFile
1   One     2014-07-29      24:34:00    1710        sF1         0           NULL        1               sF1 - sF1
2   One     2014-07-30      00:00:10    1710        sF1         0           NULL        1               sF1 - sF1
3   One     2014-07-30      01:30:00    1710        sF1         0           NULL        1               sF1 - sF1
4   One     2014-07-30      01:54:00    1710        sF1         0           NULL        1               sF1 - sF1
5   One     2014-07-30      13:30:00    1710        sF1         0           NULL        1               sF1 - sF2
6   One     2014-07-30      13:57:00    1710        sF2         0           NULL        1               sF2 - sF1
7   One     2014-07-30      24:34:00    1710        sF1         0           NULL        1               sF1 - sF2
8   One     2014-07-31      00:00:10    1710        sF2         0           NULL        1               sF2 - sF1
9   One     2014-08-01      00:00:00    1710        sF2         1           sF2 - sF1   0               NULL
10  Two     2014-08-01      00:01:00    1710        sF2         0           NULL        0               NULL
11  One     2014-08-01      00:00:00    1710        sF1         1           sF1 - sF2   0               NULL

我不符合要求。任何帮助将不胜感激。

谢谢

更新：添加电流输出

更新2：在 Dup CTE 中发现错误（使用 ID 而不是 Value）。所需的输出仍然有待改进。

更新3：进步人士，我们非常接近。现在重叠逻辑是 "working." 一个主要问题是重叠文件。它应该只列出相互重叠的记录的文件（现在，它列出了 overlapCTE 输出的所有文件，而不是专门列出那些在 STUFF 查询中满足 WHERE 的文件）。另外，有没有办法列出该唯一记录？

更新4：添加了更多记录以查看重复和重叠查询是否可以容纳不止两条记录。

Answer 1

我觉得我被吸引到在可能不需要的地方使用 CTE。我不知道你的用例，但这个 table 结构在我看来很奇怪；这是作业吗？无论如何，这应该可以解决问题：

WITH 
tFullCTE AS (
    SELECT ID as ID, Value as Value, [Date] as Date, [Time] as Time, CAST(CAST([Date] AS VARCHAR(10)) + ' ' + CAST([Time] AS VARCHAR(16)) AS DateTime2) as DateTime, Duration as Duration, srcFile as srcFile
    FROM #TempTable TT
)
,dupCTE AS (
    SELECT  main.ID as FirstID, dups.ID as SecondID
    FROM    tFullCTE main
    INNER join tFullCTE dups on main.value = dups.value and main.DateTime = dups.DateTime and main.id <> dups.id
)
, 
overlapCTE AS (
    SELECT main.ID as FirstID, ovlp.ID as SecondID
    FROM tFullCTE main 
    INNER JOIN tFullCTE ovlp
        ON   main.Value = ovlp.Value
                AND  ((ovlp.DateTime > main.DateTime  AND ovlp.DateTime < DATEADD(SECOND, main.Duration, main.DateTime)) 
                        OR (main.DateTime > ovlp.DateTime  AND main.DateTime < DATEADD(SECOND, ovlp.Duration, ovlp.DateTime)))
                AND main.ID <> ovlp.ID
)

SELECT  main.*,
        CASE WHEN EXISTS (SELECT dup.SecondID FROM dupCTE dup WHERE dup.FirstID = main.ID) THEN 1 ELSE 0 END as isDup,
        STUFF(( SELECT DISTINCT ' - ' + dupDetails.srcFile 
                FROM        dupCTE dup
                INNER JOIN  tFullCTE dupDetails on dup.SecondID = dupDetails.ID
                WHERE       dup.FirstID = main.ID
            FOR XML PATH('')), 1, 3, '') as dupFile,
        CASE WHEN EXISTS (SELECT ovlp.SecondID FROM overlapCTE ovlp WHERE ovlp.FirstID = main.ID) THEN 1 ELSE 0 END as isOverlap,
        STUFF(( SELECT DISTINCT ' - ' + ovlpDetails.srcFile 
                FROM        overlapCTE ovlp
                INNER JOIN  tFullCTE ovlpDetails on ovlp.SecondID = ovlpDetails.ID
                WHERE       ovlp.FirstID = main.ID
            FOR XML PATH('')), 1, 3, '') as overlapFile
FROM    tFullCTE main

Answer 2

;WITH ModifiedData AS(
    SELECT
        *,
        [DateTime] = DATEADD(S, DATEDIFF(S, 0, [Time]), CAST([Date] AS DATETIME)),
        DateTimeWithDuration = DATEADD(S, Duration, DATEADD(S, DATEDIFF(S, 0, [Time]), CAST([Date] AS DATETIME)))
    FROM #TempTable
)
, Flags AS(
    SELECT 
        m.*,
        isDup = CASE 
                    WHEN COUNT(*) OVER(PARTITION BY m.Value, m.[DateTime]) > 1 THEN 1
                    ELSE 0
                END,
        dupFile =   CASE 
                        WHEN COUNT(*) OVER(PARTITION BY m.Value, m.[DateTime]) > 1 THEN
                            STUFF((
                                SELECT ' - ' + srcFile
                                FROM ModifiedData
                                WHERE
                                    Value = m.Value
                                    AND m.DateTime = [DateTime]
                                FOR XML PATH('')), 1, 3, '')
                        ELSE NULL
                    END,
        isOverlap = CASE
                        WHEN COUNT(m2.Value) > 0 THEN 1
                        ELSE 0
                    END
    FROM ModifiedData m
    LEFT JOIN ModifiedData m2
        ON m2.value = m.Value
        AND
        (
            (m2.DateTime > m.DateTime AND m2.DateTime < m.DateTimeWithDuration)
            OR (m.DateTime > m2.DateTime AND m.DateTime < m2.DateTimeWithDuration)
        )
        AND m2.ID <> m.ID
    GROUP BY 
        m.ID, m2.ID, m.Value, m.Date, m.Time, m.Duration, m.srcFile, m.DateTime, m.DateTimeWithDuration
)
SELECT
    f.ID,
    f.Value,
    f.[Date],
    f.[Time],
    f.Duration,
    f.SrcFile,
    dupFile =   CASE 
                    WHEN isOverlap = 1 THEN
                        (SELECT f.srcFile + ' - ' + srcFile
                        FROM ModifiedData
                        WHERE                           
                            Value = f.Value
                            AND
                            (
                                ([DateTime] > f.DateTime AND [DateTime] < f.DateTimeWithDuration)
                                OR (f.DateTime > [DateTime] AND f.DateTime < DateTimeWithDuration)
                            )
                            AND ID <> f.ID
                        FOR XML PATH(''))
                    ELSE NULL
                END
FROM Flags f
ORDER BY f.ID

Answer 3

这应该能准确地告诉您您想要什么：

With CTE as (Select T.ID ID1, T.srcFile + ' - ' + c.srcFile over1, '1' as isDup from
#TempTable T
INNER JOIN #TempTable c on T.Value = c.Value and c.ID <> T.ID and (Cast(C.Date as datetime) + Cast(C.Time as datetime)) = (Cast(T.Date as datetime) + Cast(T.Time as datetime))),

CTE2 as
(Select T.ID ID1, c.ID ID2, T.srcFile + ' - ' + c.srcFile over1, c.srcFile + ' - ' + T.srcFile over2, '1' as isOverLap from
#TempTable T
INNER JOIN #TempTable c on T.Value = c.Value and c.ID <> T.ID
Where DateAdd(second, c.Duration, Cast(C.Date as datetime) + Cast(C.Time as datetime)) > (Cast(T.Date as datetime) + Cast(T.Time as datetime)) and (Cast(C.Date as datetime) + Cast(C.Time as datetime)) < (Cast (T.Date as datetime) + Cast(T.Time as datetime)))

Select T.*, ISNULL((Select top 1 c.isDup from CTE c where c.ID1 = T.ID) ,0) isDup
 ,(Select substring((select ',' + c1.over1 as [text()] from CTE c1 where c1.ID1 = T.ID for xml path ('')),2,1000)) dupFile
 ,ISNULL((select Top 1 case isOverLap when 1 then 1 else 0 end from CTE2 c where c.ID1 = T.ID or C.ID2 = T.ID),0) isOverLap
 ,(Select substring((select case when T.ID = C.ID1 then ',' + c.over1 else ',' + c.over2 end as [text()] from CTE2 c where c.ID1 = T.ID or C.ID2 = T.ID for xml path('')),2,1000)) OverlapFile

from #TempTable T

Answer 4

代码符合您的要求（希望如此）。我通过添加更多的重叠和重复来测试它，它不仅适用于 2 个重复的重叠文件（例如 srcFile='sF3'），而且具有以下观察结果：

DupFile - 始终按文件名排序的列表
overlapfile - 如果只有一个文件，则没有一对 "sF1 - sF1"，只有 "sF1" - 我不确定这是否是生产目的所必需的，但可以进行调整（在这种情况下还没有）

with rows
(
  select [ID],[Value], [Date], [Time], [Duration], [srcFile],

    cast(cast([date] as varchar(10))+' ' +cast(time as varchar(8)) as datetime) as datetime,
    dateadd(ss,-duration,cast(cast([date] as varchar(10))+' ' +cast(time as varchar(8)) as datetime)) as date_from,
    dateadd(ss,duration,cast(cast([date] as varchar(10))+' ' +cast(time as varchar(8)) as datetime)) as date_to

  from #TempTable
  )

, dups
as
(
SELECT [value], [Date], [Time]
FROM rows
  group by [value], [Date], [Time]
  having count([ID])>1
  )

, dups_files
as
(

  select r.*
  ,
  STUFF((select ' - '+d.srcFile
        FROM rows as d 
     WHERE (r.[value]=d.value and r.time=d.time
                              and r.date=d.date)
      order by d.srcFile
       FOR xml path('')),1,3,'') as dupFile     

  FROM dups r
  )

, duplicities
as
(
  select a.id, d.dupFile
  from rows a join dups_files d
    on ( a.value=d.value and a.date=d.date
         and a.time=d.time)

  )

, overlaps_pairs
as
(

  select  f.id as id_a, d.id as id_b, f.srcfile as srcfile_a, d.srcfile as srcfile_b


  from rows f JOIN rows d
    ON (f.id<>d.id
          AND f.value=d.value
          and f.datetime between d.date_from and d.date_to)
   where not exists
          (select 1 FROM duplicities du
             where f.id=du.id)

  )

, overlaps
as
(
  select DISTINCT op.id_a as id, 1 as isoverlap

    , STUFF((select distinct ' - ' +aa.srcFile_b
       from overlaps_pairs aa
       where aa.id_a = op.id_a
       or op.id_b=aa.id_a

       for xml path ('')),1,3,'') as overlapfiles

  from overlaps_pairs op
)

select a.id, a.value, a.date, a.time, a.duration,  a.srcFile, 
case when d.id is not null then 1 else 0 end as isDup, d.dupFile,
   o.isoverlap, o.overlapfiles
  from rows a LEFT OUTER JOIN overlaps o
  on (a.id=o.id)
  LEFT OUTER JOIN duplicities d
  on (a.id=d.id);

T/SQL - 时间相关计算

T/SQL - Time related calculations

sql

tsql

sql-server

sql-server-2012