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Question

我的一个表有以下sql触发器。我只是想知道我是否可以跟踪并添加对表进行更改的用户？

见下面的代码

ALTER trigger [dbo].[Trigger_Audit_Client] on [dbo].[Client] for insert, update, delete
as
declare @type varchar(1) ,
@UpdateDate datetime

if exists (select * from inserted) and exists (select * from deleted)
    select @type = 'U'
else if exists (select * from inserted)
    select @type = 'I'
else
    select @type = 'D'

select  @UpdateDate = getdate()

insert  Client_Audit (Client_Id, ClientName, ClientSurname, TelephoneHome, TelephoneWork, TelephoneCellular, DOB, Gender, ClientIdNumber, Company_Id, Region, City, Email, AddressLine1, AddressLine2, Will_UID, WillCreated, WillLatest, UpdateDate, UpdateType)
select  Client_Id, ClientName, ClientSurname, TelephoneHome, TelephoneWork, TelephoneCellular, DOB, Gender, ClientIdNumber, Company_Id, Region, City, Email, AddressLine1, AddressLine2, Will_UID, WillCreated, WillLatest, @UpdateDate, @type + '_old'
from deleted
insert  Client_Audit (Client_Id, ClientName, ClientSurname, TelephoneHome, TelephoneWork, TelephoneCellular, DOB, Gender, ClientIdNumber, Company_Id, Region, City, Email, AddressLine1, AddressLine2, Will_UID, WillCreated, WillLatest, UpdateDate, UpdateType)
select  Client_Id, ClientName, ClientSurname, TelephoneHome, TelephoneWork, TelephoneCellular, DOB, Gender, ClientIdNumber, Company_Id, Region, City, Email, AddressLine1, AddressLine2, Will_UID, WillCreated, WillLatest, @UpdateDate, @type + '_new'
from inserted

Answer 1

使用system_user suser_name()。

如果您的用户处于系统管理员角色，

user_name()将返回dbo。

Answer 2

User_Name()：http://technet.microsoft.com/en-us/library/ms188014.aspx

语法

USER_NAME ( [ id ] )

当省略id时，假定当前上下文中的当前用户。如果参数包含单词NULL，则返回NULL。当在EXECUTE AS语句之后调用USER_NAME而未指定id时，USER_NAME将返回模拟用户的名称。如果Windows主体通过组中的成员身份访问数据库，则USER_NAME将返回Windows主体的名称而不是组。

ASIDE：

我会将您的触发器代码更改为：

SET NOCOUNT ON;

INSERT INTO dbo.Client_Audit (Cliend_Id, ClientName, ..., UpdateDate, UpdateType)
SELECT Coalesce(i.Cliend_Id, d.Cliend_Id) As Cliend_Id
     , Coalesce(i.ClientName, d.ClientName) As ClientName
     , ...
     , Current_Timestamp As UpdateDate
     , CASE WHEN i.Cliend_Id IS NULL THEN 'D'
            WHEN d.Cliend_Id IS NULL THEN 'I'
            ELSE 'U'
       END As UpdateType
FROM   inserted As i
 FULL
  JOIN deleted As d
    ON d.Cliend_Id = i.Cliend_Id;

同样的事情，但更清洁（没有额外的逻辑和变量，只有一个声明）。

任何问题都可以问！

Answer 3

Current_user就是你要找的好先生（取决于你正在运行的sql-server的版本） http://technet.microsoft.com/en-us/library/ms176050.aspx

Answer 4

您可以创建一个新表并使用触发器填充它，例如：

create trigger LogTrigger
ON YourTable 
FOR INSERT
as
insert into LogTable  (Col_1, Col_2, Col_3, DataInsert, UserName) 
    select Col_1, Col_2, Col_3, GETDATE(), User_Name() 
from inserted

使用sql触发器获取当前用户

4 个答案:

语法

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