Sql 求和并更新临时跳过记录

我有一个临时表tbl，它的顺序是这样的，我试图计算第一条记录和第二条记录、第二条记录和第三条记录之间的差异，以此类推，更新名为Diff的字段中的结果

要解决的第二个问题是，我必须只取codeid22到23之间的差异，我必须丢弃codeid23到下一个22之间的差异。I CodeId=22表示开始，23表示停止，我必须计算驾驶时间

  Fecha               Driver   CodeId  Diff
  2014/03/01 14:00:00, 7168,     22  ,  0
  2014/03/01 14:30:00, 7168,     23  ,  0
  2014/03/01 14:40:00, 7168,     22  ,  0
  2014/03/01 16:10:00, 7168,     23  ,  0
  2014/03/01 16:50:00, 7168,     22  ,  0
  2014/03/01 17:20:00, 7168,     23  ,  0
  2014/03/01 18:30:00, 7168,     22  ,  0
  2014/03/01 19:10:00, 7168,     23  ,  0

我写了这段代码，但我发现了一个错误：

    UPDATE #tbl
    SET Difer = DATEDIFF(second, Fecha, LEAD(Fecha,1, Fecha) OVER (ORDER BY Fecha))
    FROM #tbl

    Msg 4108, Level 15, State 1, Line 2
    Windowed functions can only appear in the SELECT or ORDER BY clauses.

Im使用MS SQL server 2012

不知道怎么解决，你能帮我吗。多谢各位

我在等待帮助的时候写了这段代码

    ; WITH Sumar AS (
     Select Fecha as Fecha1, 
         DATEDIFF(second, Fecha, LEAD(Fecha,1, Fecha) OVER (ORDER BY Fecha)) as Total
     FROM #tbl)
    UPDATE #tbl
    SET Difer = Total
    FROM Sumar
    WHERE Fecha = Fecha1 AND EvenTypeId <> 23

对我来说工作很好。谢谢大家。

试试这个

;WITH CTE_GO
AS(  
 SELECT Fecha , Driver, CodeId,Diff,
        ROW_NUMBER() OVER (ORDER BY Fecha ASC) RN_Go
 FROM  #tbl
 WHERE CodeId = 22
 ),
 CTE_Stop
 AS
 (
 SELECT Fecha , Driver, CodeId,Diff,
        ROW_NUMBER() OVER (ORDER BY Fecha ASC) RN_Go
 FROM  #tbl
 WHERE CodeId = 23
 )
UPDATE  S
SET S.Diff = DATEDIFF(MINUTE, G.Fecha, S.Fecha) 
FROM CTE_GO G INNER JOIN CTE_Stop S
ON G.RN_Go = S.RN_Go

结果集

---

谢谢你的回答M.阿里，我在等待帮助的时候试着写了下面的代码和作品。再次感谢你

╔═════════════════════════╦════════╦════════╦══════╗
║          Fecha          ║ Driver ║ CodeId ║ Diff ║
╠═════════════════════════╬════════╬════════╬══════╣
║ 2014-03-01 14:00:00.000 ║   7168 ║     22 ║    0 ║
║ 2014-03-01 14:30:00.000 ║   7168 ║     23 ║   30 ║
║ 2014-03-01 14:40:00.000 ║   7168 ║     22 ║    0 ║
║ 2014-03-01 16:10:00.000 ║   7168 ║     23 ║   90 ║
║ 2014-03-01 16:50:00.000 ║   7168 ║     22 ║    0 ║
║ 2014-03-01 17:20:00.000 ║   7168 ║     23 ║   30 ║
║ 2014-03-01 18:30:00.000 ║   7168 ║     22 ║    0 ║
║ 2014-03-01 19:10:00.000 ║   7168 ║     23 ║   40 ║
╚═════════════════════════╩════════╩════════╩══════╝