Question

我正在使用正在创建包含表的主键的更新语句的产品。

简化为：

  UPDATE T SET PK1='ID1', PK2='ID2'... WHERE PK='ID1' AND PK2 ='ID2'...

运行该语句将违反主键约束。

如果在PK1='ID1'中没有SET的情况下运行相同的更新，则更新会毫无问题地运行。

我该如何使这项工作？而不是更新触发器？

我对创建这些声明的产品没有任何控制权。

INFO

桌子上有一个其他触发器。

TRIGGER [dbo].[DeleteExisting] ON  [dbo].[T] 
INSTEAD OF INSERT
DELETE FROM T WHERE PK1 in (SELECT PK1 FROM INSERTED) AND PK2 IN (SELECT PK2 FROM INSERTED);
INSERT INTO T
SELECT * FROM INSERTED;

错误：

Msg 2627, Level 14, State 1, Line 1
Violation of PRIMARY KEY constraint 'PK_T'. Cannot insert duplicate key in object 'dbo.T'.
The statement has been terminated.

TABLE：

CREATE TABLE [dbo].[T](
    [PK1] [varchar](11) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
    [PK2] [varchar](20) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
    [CLOSED] [bit] NULL,
    [TYPE] [varchar](20) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
    [TAG] [varchar](20) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
    ...
    [Date] [datetime] NULL CONSTRAINT [DF__Z_T_Date]  DEFAULT (getdate()),
    [UDF17] [varchar](20) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
CONSTRAINT [PK_T] PRIMARY KEY CLUSTERED 
(
    [PK1] ASC,
    [PK2] ASC
)WITH (PAD_INDEX  = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]

产品的实际更新：

 exec sp_executesql N'UPDATE "DB".."T" SET "PK1"=@P1,"WOTYPE"=@P2,"TAG"=@P3,"SITE"=@P4,"BLDG"=@P5,"FLOOR"=@P6,"ROOM"=@P7,"REQCODE"=@P8,"SHORTDESC"=@P9,"DATEOPENED"=@P10,"PRIORITY"=@P11,"STATUS"=@P12,"SHOP"=@P13,"TRADE"=@P14,"EMPCODE"=@P15,"FAULT1"=@P16,"FAULT2"=@P17,"FAULT3"=@P18,"CLOSEREM"=@P19,"MRNOTE1"=@P20,"RTACCT"=@P21,"SPACCT1"=@P22,"SPACCT2"=@P23,"WONUMTRUN"=@P24,"DATETRUNPM"=@P25,"REQTRUN"=@P26,"DEVICEID"=@P27,"LOC"=@P28,"LOCSEG4"=@P29,"LOCSEG5"=@P30,"LOG"=@P31,"FAULTCOMB"=@P32,"EQUIPLOC"=@P33,"RQSTR"=@P34,"CLOSEDTXT"=@P35,"CLSCXL"=@P36,"PK2"=@P37,"CLOSEDESC"=@P38,"REQUEST"=@P39,"UDF17cboText"=@P40 WHERE "WONUM"=@P41 AND "WOTYPE"=@P42 AND "TAG"=@P43 AND "SITE"=@P44 AND "BLDG"=@P45 AND "FLOOR"=@P46 AND "ROOM"=@P47 AND "REQCODE"=@P48 AND "SHORTDESC"=@P49 AND "DATEOPENED"=@P50 AND "PRIORITY"=@P51 AND "STATUS"=@P52 AND "SHOP"=@P53 AND "TRADE"=@P54 AND "EMPCODE" IS NULL AND "FAULT1"=@P55 AND "FAULT2"=@P56 AND "FAULT3"=@P57 AND "CLOSEREM"=@P58 AND "MRNOTE1"=@P59 AND "RTACCT"=@P60 AND "SPACCT1"=@P61 AND "SPACCT2"=@P62 AND "WONUMTRUN"=@P63 AND "DATETRUNPM"=@P64 AND "REQTRUN"=@P65 AND "DEVICEID" IS NULL AND "LOC"=@P66 AND "LOCSEG4" IS NULL AND "LOCSEG5" IS NULL AND "LOG"=@P67 AND "FAULTCOMB" IS NULL AND "EQUIPLOC"=@P68 AND "RQSTR"=@P69 AND "CLOSEDTXT"=@P70 AND "CLSCXL"=@P71 AND "PK2"=@P72 AND "CLOSEDESC" IS NULL AND "REQUEST"=@P73 AND "UDF17cboText"=@P74',N'@P1 varchar(6),@P2 varchar(2),@P3 varchar(9),@P4 varchar(3),@P5 varchar(3),@P6 varchar(1),@P7 varchar(1),@P8 varchar(6),@P9 varchar(8),@P10 datetime,@P11 varchar(1),@P12 varchar(5),@P13 varchar(1),@P14 varchar(5),@P15 varchar(1),@P16 varchar(1),@P17 varchar(1),@P18 varchar(1),@P19 varchar(1),@P20 varchar(12),@P21 varchar(1),@P22 varchar(1),@P23 varchar(1),@P24 varchar(5),@P25 varchar(5),@P26 varchar(1),@P27 varchar(1),@P28 varchar(20),@P29 varchar(1),@P30 varchar(1),@P31 varchar(2),@P32 varchar(1),@P33 varchar(9),@P34 varchar(1),@P35 varchar(2),@P36 varchar(20),@P37 varchar(20),@P38 varchar(1),@P39 varchar(700),@P40 varchar(1),@P41 varchar(6),@P42 varchar(2),@P43 varchar(9),@P44 varchar(3),@P45 varchar(3),@P46 varchar(1),@P47 varchar(1),@P48 varchar(6),@P49 varchar(8),@P50 datetime,@P51 varchar(1),@P52 varchar(5),@P53 varchar(1),@P54 varchar(5),@P55 varchar(1),@P56 varchar(1),@P57 varchar(1),@P58 varchar(1),@P59 varchar(12),@P60 varchar(1),@P61 varchar(1),@P62 varchar(1),@P63 varchar(5),@P64 varchar(5),@P65 varchar(1),@P66 varchar(20),@P67 varchar(2),@P68 varchar(9),@P69 varchar(1),@P70 varchar(2),@P71 varchar(20),@P72 varchar(20),@P73 varchar(3000),@P74 varchar(1)','017901','PM','PAE-AHU02','BAK','PAE','','','XAHU-S','AHU/stop','2011-01-31 00:00:00:000','','SCHLD','','HMECH',NULL,'','','','','Parkridge ES','','','','17901','01/31','S',NULL,'BAK-PAE             ',NULL,NULL,'A1',NULL,'PAE-AHU02','','  ','                    ','tilt',NULL,'___ 01.','','017901','PM','PAE-AHU02','BAK','PAE','','','XAHU-S','AHU/stop','2011-01-31 00:00:00:000','','SCHLD','','HMECH','','','','','Parkridge ES','','','','17901','01/31','S','BAK-PAE             ','A1','PAE-AHU02','','  ','                    ','tilt','___ 01.     ',''

作为测试，我做了这个没有错误：

exec sp_executesql 
N'UPDATE "JCTEST".."T" SET "WONUM"=@P1,"StagedBy"=@P2 WHERE "WONUM"=@P3 AND "StagedBy"=@P4',
N'@P1 varchar (11),@P2 varchar(20),@P3 varchar(11),@P4 varchar(20)' ,'017747','tilt','017747','tilt'

这证明我没有违反主键。我可以打开sql server中的一些日志记录吗？我该怎么做才能找出真正的错误是什么？

Answer 1

必须有一些其他的东西像桌上的触发器一样

运行良好

CREATE TABLE Test(id INT PRIMARY KEY, bla CHAR(1))
GO
INSERT Test VALUES(1,'a')
INSERT Test VALUES(2,'b')


UPDATE Test SET id = 1 WHERE id = 1

查明是否有触发器

SELECT OBJECT_NAME(parent_id),* 
 FROM sys.triggers
 WHERE OBJECT_NAME(parent_id) = 'YourTable'

Answer 2

对我来说看起来像是一个触发器问题。下面是一些代码，它是我用于排除故障和修复触发器的过程。

Create table #inserted (add all fiedl from the current tbale here)
Create table #deleted (add all fields from the current table here)

Insert into #inserted 
values (add the new values you would expect to get from the update statment of a particular record)

Insert into #deleted 
values (add the original values you would expect to get from a particular record)
begin tran
--to see what records would be deleted 
Select *
WHERE   PK1 in (SELECT PK1 FROM #INSERTED) 
        AND PK2 IN (SELECT PK2 FROM #INSERTED);

--run the actual code
DELETE FROM T 
WHERE   PK1 in (SELECT PK1 FROM #INSERTED) 
        AND PK2 IN (SELECT PK2 FROM #INSERTED);
--to see what records are going to be inserted
 SELECT * FROM #INSERTED 
--to see if you have any records still in inserted that are in table T
Select * from #inserted
join T on #inserted.PK1 = T.PK1
--run the actual code
 INSERT INTO T 
 SELECT * FROM #INSERTED;

 rollback tran

此代码将让您能够准确查看触发器将执行的操作并找到代码的问题部分。我怀疑在插入之前没有删除预期的记录。

修改更新语句包括触发器中的主键

2 个答案: