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triggEr DElEtE

CREATE TRIGGER A_table_delete ON A FOR DELETE BEGIN DECLARE @UserID nvarchar(128); SET @UserID = (SELECT UserID FROM deleted); UPDATE B set PropRight=xxx WHERE UserID=@UserID; END GO

create trigger tr_a on a for insert,update,delere as begin IF EXISTS(SELECT 1 FROM inserted) AND NOT EXISTS(SELECT 1 FROM deleted) BEGIN -- 插入触发. INSERT INTO B SELECT inserted.a FROM inserted; END; IF EXISTS(SELECT 1 FROM i...

推荐使用instead of触发器(理由:没有必要插入后删除,浪费系统资源),代码如下: create trigger Mytr on 表名 instead of deleted as delete from 表名 from ( select * from deleted where (deleted.部门='开发部' and deleted.工资

怎么可能,FOR DELETE 这都标明是delete触发器了,不会在update时触发的,你是不是另写过update触发器或者其他表的触发器关联了这个表

在SQL中,触发器是一种特殊类型的存储过程,它不同于SQL的存储过程。触发器主要是通过事件进行触发而被执行的,而存储过程可以通过存储过程名字而被直接调用。当对某一表进行诸如UPDATE、 INSERT、 DELETE 这些操作时,SQL Server 就会自动执行...

INSERT: 表1 (ID,NAME)表2 (ID,NAME)当用户插入表1数据后,表2也被插入相同的数据CREATE TRIGGER TRI1ON 表1FOR INSERTASBEGIN INSERT INTO 表2 SELECT * FROM INSERTEDENDGO DELETE: 表1 (ID,NAME)表2 (ID,AGE,GENDER)当用户删除表1某条ID的数...

DECLARE @IsInsert bit, @IsUpdate bit, @IsDelete bit IF EXISTS(SELECT 1 FROM inserted) AND NOT EXISTS(SELECT 1 FROM deleted) SET @IsInsert = 1 ELSE SET @IsInsert = 0 IF EXISTS(SELECT 1 FROM inserted) AND EXISTS(SELECT 1 FROM del...

there is no new row in on delete trigger_有道翻译 翻译结果: 没有新行删除触发器 delete_有道词典 delete 英 [dɪ'liːt] 美 [dɪ'lit] vt. 删除 更多释义>> [网络短语] Delete 删除,删除 (SQL),删去 Delete Layer 删除图层,删...

create trigger tri_instead_delon studentinstead of deleteasbegin declare @courseId varchar(50) --定义编号变量。 --在deleted表中查询要删除的编号 select @courseId=stu_idfrom deleted delete from score where stu_id=@courseId delete...

关于 前面 执行2次的,我还不确定是什么原因 对于 DELETE 出错的情况, 是取值的方式不正确 请看下面这个 DELETE 的触发器的例子: SQL> CREATE OR REPLACE TRIGGER BeforeDeleteTest 2 BEFORE DELETE ON test_trigger_table 3 FOR EACH ROW 4 BE...

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