SQL Server触发器正在执行两次

Question

有非常简单的触发......

ALTER TRIGGER [dbo].[DEL_NOT_ALLOWED_ON_USER_TBL]
ON [dbo].[USER_TBL]
FOR DELETE AS
BEGIN
        PRINT 'Sorry! - Delete Not Allowed!'
        ROLLBACK TRANSACTION
        INSERT INTO WHO_TRIED_TO_DELETE_TABLE
        (DATE, DEL_TABLE_NAME, COMMENT)
        VALUES (GETDATE(), 'USER_TBL', 'STOPPED DUE TO TRIGGER ON USR TABLE')
        RETURN;
END

当有人试图执行如下语句时：

delete USER_TBL where 1 = 1 and user_id in ('john78rrt3458@yahoo.com') -- only 1 record found...

之后我在WHO_TRIED_TO_DELETE_TABLE

中找到两条记录

ROW_ID  DATE    DEL_TABLE_NAME  COMMENT
32  10/23/2015 5:52:09 PM   USER_TBL    STOPPED DUE TO TRIGGER ON USR TABLE
31  10/23/2015 5:52:09 PM   USER_TBL    STOPPED DUE TO TRIGGER ON USR TABLE

有什么想法吗？

为什么触发器执行两次？

Answer 1

1. 1 - 确保您没有2个USER_TBL上的删除触发器
2. 请确保您没有在WHO_TRIED_TO_DELETE_TABLE上插入触发器
3. 使用sql server profiler检查发送给dbms的查询