Question

我们只想通过写入触发器维护MS SQL中的表日志（每个更改）历史记录

我试过但没有工作

CREATE TRIGGER [dbo].[update_ServiceDescriptionTable]
ON ServiceDescriptionMaster
After UPDATE
AS
BEGIN
        declare @Rate money;
        Select @Rate = Rate from inserted;

        update [dbo].[ServiceDescriptionMasterlog] set Rate = @Rate 
        where Service_Description = '';
END

Answer 1

雅好。如果要维护evry更改日志，则可以在所有字段中插入相同的日志表，如下所示：

1）创建与＆＃34; ServiceDescriptionMasterlog＆＃34;相同的表格。 with one Extra Field（Column）Entry_DateTime set default bind getdate（）method。

2）在＆＃34; ServiceDescriptionMaster＆＃34;上写一个触发器表格如下：

ALTER TRIGGER [dbo].[ServiceDescriptionMaster_OnUpdate]
ON [dbo].[ServiceDescriptionMaster]
After UPDATE
AS
BEGIN
       SET NOCOUNT ON; 
       INSERT INTO [dbo].[ServiceDescriptionMasterLog]
       (S_No,Rate,.....)
       select S_No,Rate,.....
       from Deleted;
END

你也可以继续删除：

ALTER TRIGGER [dbo].[ServiceDescriptionMaster_OnDelete]
ON [dbo].[ServiceDescriptionMaster]
For Delete
AS
BEGIN
       SET NOCOUNT ON; 
       INSERT INTO [dbo].[ServiceDescriptionMasterLog]
       (S_No,Rate,.....)
       select S_No,Rate,.....
       from Deleted;
END

如何通过写入触发器维护MS SQL中的表日志（每个更改）历史记录

1 个答案: