Question

我有以下TSQL语句将数据从一个数据库表插入到另一个数据库表中，如何使用Trigger管理这个？ Source表是[DISCS]，目标表是， [WIBOMH]是主表，[WIBOMH]是标题表，[WIBOMD]是详细表必须首先将订单插入[WIITEM]，然后创建标题[WIBOMH]

我要解雇这个AFTER INSERT。当我在DISC表中添加一个新的DISC时，我想触发以下插入语句

- 插入[WIITEM]表---

     INSERT INTO [WIITEM] 
       ([itemId], [descr],[xdesc],[sales] ,[uOfM] ,[poUOfM] ,[uConvFact],[ref],[type],[status],[unitWgt] )
     SELECT [itemId], [PURCHASE_DESCRIPTION], [SALES_DESCRIPTION], [sales] ,[uOfM] ,[poUOfM] ,[uConvFact],'TESTING', '2','0',[unitWgt]
      FROM [DISCS] 
     WHERE [itemId] NOT IN (SELECT [itemId] FROM [WIITEM])
     AND [makebuy]='Make';

- 插入[WIBOMH]表---

  DECLARE @d DATETIME = GETDATE();
 INSERT  INTO [WIBOMH] 
   ([bomItem], [bomRev], [rollup], [mult], [autoBuild], [assyLead],[revCmnt],[author],[descr],[qPerLead],[lstMainDt],[revDate],[effStartDate],[ovride] )
 SELECT DISTINCT [bomitem], 'B', '1', '1', '1', '3','TESTING','USER NAME','TESTING','0', FORMAT(@d, 'yyyy-MM-dd HH\:mm\:ss\.fff', 'en-US') AS 'Format#1',FORMAT(@d, 'yyyyMMdd' , 'en-US') AS 'Format#2',FORMAT(@d, 'yyyyMMdd' , 'en-US') AS 'Format#2','0'
FROM [DISCS] 
 WHERE [bomitem]  IN (SELECT [ItemId] FROM [WIITEM] where type='2')
   AND [bomitem]  NOT IN (SELECT [bomItem] FROM [WIBOMH]);

- 插入[WIBOMD]表---

 INSERT INTO [WIBOMD] 
   ([bomItem], [bomRev], [bomEntry], [partId], [qty],[cmnt],[srcLoc],[dType],[lead],[lineNbr])
 SELECT [ItemID], 'B', [bomEntry], [partid], [qty],'TESTING','WSD-DS','0','0', [lineNbr]
 FROM [DISCS]  
 WHERE [ItemID]  IN (SELECT [ItemId] FROM [WIITEM] where type='2')
  AND [ItemID]  NOT IN (SELECT [bomItem] FROM [WIBOMD]);

我试过

INSERT INTO [MITESTCO].[WIITEM] 
   ([itemId], [descr],[xdesc],[sales] ,[uOfM] ,[poUOfM] ,[uConvFact],[ref],[type],[status])

 SELECT 
   [CALC STOCK PN], [PURCHASE DESCRIPTION], [SALES DESCRIPTION], [CALC STOCK PN] ,'EA' ,'EA' ,'1','SYNC FROM PDM', '2','0'--,[APPROX. WGT.]
   FROM inserted
   WHERE [MAKE / BUY]='Make' [CALC STOCK PN] NOT IN (SELECT [itemId] FROM [MIITEM] WHERE itemId NOT LIKE '*-CI');

但是我

无效对象[MITESTCO]。[WIITEM]

这里我得到了第一个触发器

create TRIGGER [dbo].[PNSETUP] 
    ON [dbo].[DISCS]
    AFTER insert,UPDATE
    AS 
    BEGIN
     IF TRIGGER_NESTLEVEL() > 1
     RETURN
 SET ANSI_WARNINGS  OFF;
 INSERT INTO MITESTCO.dbo.WIITEM
   ([itemId], [descr],[xdesc],[sales] ,[uOfM] ,[poUOfM] ,[uConvFact],[ref],[type],[status])--,[unitWgt] 
 SELECT [CALC STOCK PN], [PURCHASE DESCRIPTION], [SALES DESCRIPTION], [CALC STOCK PN] ,'EA' ,'EA' ,'1','SYNC FROM PDM', '2','0'--,[APPROX. WGT.]
  FROM [DISCS]
 WHERE [CALC STOCK PN] NOT IN (SELECT [itemId] FROM MITESTCO.dbo.[WIITEM] WHERE itemId NOT LIKE '*-CI')
 AND [MAKE / BUY]='Make';
   SET ANSI_WARNINGS  ON;

如何将下两个insert select语句添加到同一个触发器

Answer 1

您可以在插入触发器后使用每次插入后更新计数。

Answer 2

你需要一个触发器吗？您是否需要实时复制表格中的新行？

触发器将杀死表的插入性能。

考虑将一个DateLastCopied列添加到源表，然后每分钟添加一次

declare @now as datetime= getdate()

update sourcetable set DateLastCopied=@now where DateLastCopied is null

insert into targetTable(..)
select ...
FROM sourcetable where DateLastCopied=@now

如何使用sqlserver

2 个答案: