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我在同一個表上有多個觸發器使用多個觸發器的原因是因爲有些字段需要從不同的表中更新，我也有backward date scheduling。有線正在發生當我第一次插入時，只有一個字段從其中一個觸發器更新或一個觸發器被觸發，當我第一次更新行時觸發三個觸發器，...我必須更新3次以獲取所有每次我做第一次，第二次，第三次更新時，更新的字段也需要大約8秒在同一個表上有多個觸發器的缺點
問題1.在單個表中有多個觸發器的缺點是什麼？
問題2.我怎樣才能加快觸發器？
問題3.我該如何調試觸發器？
後順序調度
SHIP BY = CUSTOMER PROMISED DATE-1
A-MOUNT BY =船舶-1
A-粉體= A-MOUNT BY - 1 OR A-粉體也等於船由日期-2
A-FAB BY = A-粉體 - 1 OR A-FAB BY也等於船由日期-3
AC/S BY = A-FAB BY OR AC/S BY也等於按日期發貨-4
A-CUT BY = AC/S BY -1或A-CUT BY也等於按日期發貨-5
/****** Object: Trigger [dbo].[CALC-PROMISED-DATE-AND-SHIPBY] Script Date: 4/6/2017 2:46:01 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[CALC-PROMISED-DATE-AND-SHIPBY]
ON [dbo].[WORKORDERS]
AFTER INSERT, UPDATE
AS
BEGIN
set nocount on
IF TRIGGER_NESTLEVEL() > 1
RETURN
set datefirst 7;
UPDATE T1
[SHIP BY] =
CASE datepart(WEEKDAY, t1.[CALC PROMISED DATE])
WHEN 1 then DateAdd(day, -2, t1.[CALC PROMISED DATE])
WHEN 7 then DateAdd(day, -1, t1.[CALC PROMISED DATE])
ELSE
CASE
WHEN t1.[RE-COMMIT DATE] =Null THEN ISNULL(T1.[PROMISED DATE],Null)
WHEN t1.[RE-COMMIT DATE] is null THEN ISNULL(T1.[PROMISED DATE],Null)
ELSE ISNULL(T1.[RE-COMMIT DATE],Null)
END
END
FROM WORKORDERS T1
INNER JOIN inserted i ON T1.[WORK ORDER #] = i.[WORK ORDER #]
END
A-MOUNT BY
/****** Object: Trigger [dbo].[MOUNTBY] Script Date: 4/6/2017 2:46:54 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[MOUNTBY]
ON [dbo].[WORKORDERS]
AFTER INSERT,UPDATE
AS
BEGIN
IF TRIGGER_NESTLEVEL() > 1
RETURN
set datefirst 7;
UPDATE T1
[A-MOUNT BY] =
case datepart(WEEKDAY, DateAdd(day,-1,t1.[SHIP BY]))
when 7 then DateAdd(day, -2, t1.[SHIP BY])
when 1 then DateAdd(day, -3, t1.[SHIP BY])
else DateAdd(day, -1, t1.[SHIP BY])--t1.[A-C/S BY]-1
END
FROM WORKORDERS T1
INNER JOIN inserted i ON T1.[WORK ORDER #] = i.[WORK ORDER #]
END
A-粉體
/****** Object: Trigger [dbo].[POWDERBY] Script Date: 4/6/2017 2:49:53 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[POWDERBY]
ON [dbo].[WORKORDERS]
AFTER INSERT,UPDATE
AS
BEGIN
IF TRIGGER_NESTLEVEL() > 1
RETURN
set datefirst 7;
UPDATE T1
--SET
SET [A-POWDER BY] =
case datepart(WEEKDAY, t1.[A-MOUNT BY]-1)
when 7 then DateAdd(day, -2, t1.[A-MOUNT BY])
when 1 then DateAdd(day, -3, t1.[A-MOUNT BY])
else t1.[A-MOUNT BY]-1
END
FROM WORKORDERS T1
INNER JOIN inserted i ON T1.[WORK ORDER #] = i.[WORK ORDER #]
END
A-FAB BY
/****** Object: Trigger [dbo].[FABBY] Script Date: 4/6/2017 2:50:23 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[FABBY]
ON [dbo].[WORKORDERS]
AFTER insert, UPDATE
AS
BEGIN
IF TRIGGER_NESTLEVEL() > 1
RETURN
set datefirst 7;
UPDATE T1
SET [A-FAB BY] = case datepart(WEEKDAY, t1.[A-POWDER BY]-1)
when 7 then DateAdd(day, -2, t1.[A-POWDER BY])
when 1 then DateAdd(day, -3, t1.[A-POWDER BY])
else t1.[A-POWDER BY]-1
END
FROM WORKORDERS T1
INNER JOIN inserted i ON T1.[WORK ORDER #] = i.[WORK ORDER #]
END
A-PRINT BY
/****** Object: Trigger [dbo].[PRINTBY] Script Date: 4/6/2017 2:50:50 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[PRINTBY]
ON [dbo].[WORKORDERS]
AFTER INSERT, UPDATE
AS
BEGIN
IF TRIGGER_NESTLEVEL() > 1
RETURN
set datefirst 7;
UPDATE T1
SET [A-PRINT BY] = case datepart(WEEKDAY, t1.[A-FAB BY])
when 7 then DateAdd(day, -2, t1.[A-FAB BY])
when 1 then DateAdd(day, -3, t1.[A-FAB BY])
else t1.[A-FAB BY]-1
END
FROM WORKORDERS T1
INNER JOIN inserted i ON T1.[WORK ORDER #] = i.[WORK ORDER #]
END
A-C/S BY
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[C/SBY]
ON [dbo].[WORKORDERS]
AFTER INSERT,UPDATE
AS
BEGIN
IF TRIGGER_NESTLEVEL() > 1
RETURN
set datefirst 7;
UPDATE T1
--SET
SET [A-C/S BY] = case datepart(WEEKDAY, t1.[A-PRINT BY]-1)
when 7 then DateAdd(day, -2, t1.[A-PRINT BY])
when 1 then DateAdd(day, -3, t1.[A-PRINT BY])
else t1.[A-PRINT BY]-1
END
FROM WORKORDERS T1
INNER JOIN inserted i ON T1.[WORK ORDER #] = i.[WORK ORDER #]
END
A-削減
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[CUTBY]
ON [dbo].[WORKORDERS]
AFTER INSERT, UPDATE
AS
BEGIN
IF TRIGGER_NESTLEVEL() > 1
RETURN
set datefirst 7;
UPDATE T1
--SET
SET [A-CUT BY] =
case datepart(WEEKDAY, DateAdd(day,-1,t1.[A-C/S BY]))
when 7 then DateAdd(day, -2, t1.[A-C/S BY])
when 1 then DateAdd(day, -3, t1.[A-C/S BY])
else t1.[A-C/S BY]-1--t1.[A-C/S BY]-1
END
FROM WORKORDERS T1
INNER JOIN inserted i ON T1.[WORK ORDER #] = i.[WORK ORDER #]
END
你能發佈足夠的觸發器嗎？那些更新？你是否加入插入，只更新受影響的行？您是否知道您可以在單個更新聲明中更新多個列？你真的需要提供你的問題的所有信息。這整個事情尖叫着一個非常糟糕的建築。 –
確定是的，但我只想更新只有一行或受影響的行 – Joe
我明白了，但你沒有提供任何代碼......只有一個片段。當您想要更新加入到插入和/或刪除虛擬表的受影響行時。介紹整個過程，而不只是你認爲的問題。我可以放心地說，在這一點上，整個過程是複雜的。這種事情不應該只是一個更新聲明。 –