Question

我正在尝试创建一个表，该表显示操作员班次正在合并操作员登录和注销的行。由于存在多个站和运算符，因此我需要根据运算符而不是下一个值选择下一行。例如，在下面将联接的查询分开时，上次登录时间将是第329行，注销时间将是第408行。
登录= 1，注销= 0

select 
    A.Operator, 
    A.Station,A.[TIME] AS "Logon", 
    B.[TIME] AS "Logoff"
from  (SELECT 
        [Operator],
        [TIME],
        [Station], 
        ROW_NUMBER() OVER (ORDER BY [TIME], [Operator], Station) AS RowNumber
       FROM 
          shiftstagenew 
       WHERE [ON-OFF] = '0' 
       AND [Operator] = 'Operator1')  A
JOIN 
      (SELECT 
        [Operator],
        [TIME],
        [Station], 
        ROW_NUMBER() OVER (ORDER BY [TIME], [Operator], Station) AS RowNumber
       FROM shiftstagenew WHERE [ON-OFF] = '1' 
       AND [Operator]  = 'Operator1') B
ON (
    A.RowNumber = B.RowNumber 
        AND 
    A.Operator = B.Operator 
        AND 
    A.Station = B.Station)

我已经更新了查询并且越来越近

   select A.Operator, A.Station,B.[TIME] AS "Logon", A.[TIME] AS "Logoff"
      from  (SELECT [TIME], [Operator], [Station], ROW_NUMBER() OVER (PARTITION 
      BY 
      [Operator], [Station] ORDER BY [Time], Station) AS RowNumber
   FROM 
      shiftstagenew WHERE [ON-OFF] = '1')  A
JOIN 
     (SELECT [Time],[Operator], [Station], ROW_NUMBER() OVER (PARTITION BY 
       [Operator], [Station] ORDER BY [Time], Station) AS RowNumber
     FROM shiftstagenew WHERE [ON-OFF] = '0') B
ON (A.Operator=B.Operator AND A.Station=B.Station AND A.RowNumber=B.RowNumber)

Query Results:
Operator    Station Logoff  Logon
Vitemeus    102 2019-07-07 08:15:19.380 2019-05-27 17:39:06.550
Vitemeus    102 2019-07-07 07:23:54.790 2019-05-27 14:50:13.687
Vitemeus    102 2019-07-07 03:45:46.890 2019-05-27 11:56:54.903
Vitemeus    102 2019-07-07 03:44:28.267 2019-05-24 23:52:49.313
Vitemeus    102 2019-07-07 03:08:16.343 2019-05-20 19:30:11.010

如您所见，上次登录后并没有注销

OFF
2019-07-07 08:15:19.380 Vitemeus    102 445
2019-07-07 07:23:54.790 Vitemeus    102 444
2019-07-07 03:45:46.890 Vitemeus    102 443
2019-07-07 03:44:28.267 Vitemeus    102 442
2019-07-07 03:08:16.343 Vitemeus    102 441
2019-07-07 02:00:09.757 Vitemeus    102 440
2019-07-07 00:37:30.610 Vitemeus    102 439
2019-07-06 13:16:02.330 Vitemeus    102 438
2019-07-06 12:00:19.157 Vitemeus    102 437

ON
2019-07-07 08:02:02.500 Vitemeus    102 498
2019-07-07 06:52:34.303 Vitemeus    102 497
2019-07-07 03:44:42.427 Vitemeus    102 496
2019-07-07 03:25:28.957 Vitemeus    102 495
2019-07-07 02:52:40.210 Vitemeus    102 494
2019-07-07 01:45:00.373 Vitemeus    102 493
2019-07-07 00:32:39.800 Vitemeus    102 492

对于那些要求表结构（ON-OFF为0或1）的人：

CREATE TABLE [dbo].[ShiftStageNEW](
    [ON-OFF] [nvarchar](1) NULL,
    [Time] [datetime] NULL,
    [Station] [nvarchar](3) NULL,
    [Action] [nvarchar](4) NULL,
    [Operator] [varchar](8) NULL,
    [Data] [nvarchar](900) NULL,
    [Translation] [int] NULL,
    [LogTime] [bigint] NULL,
    [MessageId] [nvarchar](256) NULL
) ON [PRIMARY]

Answer 1

您应该查看LAG函数：

SELECT
     [Year]                         = YEAR([OrderDate])
    ,[Sales Amount]                 = SUM([SalesAmount])
    ,[Sales Amount Previous Year]   = LAG(SUM([SalesAmount])) OVER (ORDER BY YEAR([OrderDate]))
FROM [dbo].[FactResellerSales]
GROUP BY YEAR([OrderDate])
ORDER BY [Year];

来源：https://www.mssqltips.com/sqlservertutorial/9127/sql-server-window-functions-lead-and-lag/

也请在此处查看符合您要求的我的问题：Find next record where status field is different from current

Answer 2

公用表表达式应该可以帮助您实现所需的目标。
但是行号的排序似乎有点麻烦。
在排序中添加了分区。如果您需要的话，可以坚持使用原始照片。

WITH LOGON AS (
    SELECT
        [Operator],
        [TIME],
        [Station], 
        ROW_NUMBER() OVER (PARTITION BY [Operator], Station ORDER BY [TIME]) AS RowNumber
    FROM 
        shiftstagenew
    WHERE 
        [ON-OFF] = '0' 
    AND [Operator] = 'Operator1'
),
LOGOFF AS (
    SELECT
        [Operator],
        [TIME],
        [Station], 
        ROW_NUMBER() OVER (PARTITION BY [Operator], Station ORDER BY [TIME]) AS RowNumber
    FROM 
        shiftstagenew
    WHERE 
        [ON-OFF] = '1' 
    AND [Operator] = 'Operator1'
)
select 
    LOGON.Operator, 
    LOGON.Station,
    LOGON.[TIME] AS "Logon", 
    LOGOFF.[TIME] AS "Logoff"
FROM LOGON LEFT JOIN LOGOFF 
ON (
    LOGON.RowNumber = LOGOFF.RowNumber 
        AND 
    LOGON.Operator = LOGOFF.Operator 
        AND 
    LOGON.Station = LOGOFF.Station)

根据列值选择上一个行号

2 个答案: