Question

我为审计编写了一个触发器。我正在尝试将数据写入名为audit.table的审计表。每当请求插入时，我希望触发器在插入之后写入新值，并在插入之前写入行值。我希望将行中的数据写入xml并写入新表中的行。到目前为止，除了前一行值之外，插入没有写入“删除表”之前，我认为它可能是我的“更新，删除，选择”

这是我的SQL。

USE [AdventureWorks2012]
GO
/****** Object:  Trigger [Person].[dPerson]    Script Date: 09/01/2014 16:38:56 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
--create audit table 

-- Create trigger to populate HumanResources
ALTER TRIGGER [Person].[dPerson] ON [Person].[Address]
     for UPDATE, DELETE, INSERT
AS
declare @AuditUser varchar(50),
@AuditDate datetime,
@AuditAction char(1),
@PrevValue XML,
@AuditTable varchar(50),
@AuditHost nvarchar(128),
@AuditTablePK int,
@AuditApp nvarchar(128),
@xml XML

select @AuditUser = SYSTEM_USER
select @AuditDate = getDate()
select @AuditTable = 'Person.Address'
select @AuditHost = HOST_NAME()
select @AuditApp = APP_NAME()
select @AuditTablePK = IDENT_CURRENT('Person.Address')





    SET NOCOUNT On;

   set new value 
    SET @xml =  
        (
          SELECT [AddressID], [AddressLine1], [AddressLine2], [City], [StateProvinceID], [SpatialLocation].ToString(), [PostalCode], [rowguid], [ModifiedDate]

      FROM INSERTED
      FOR XML PATH('Inserted')
    );

    --set old row value

--  --set old row value

SET @PrevValue =  
    (
      SELECT [AddressID], [AddressLine1], [AddressLine2], [City], [StateProvinceID], [SpatialLocation].ToString(), [PostalCode], [rowguid], [ModifiedDate]

      FROM deleted
      FOR XML PATH('Deleted')
    );
if exists (select * from deleted)
    if exists (select * from inserted)
    begin
            select @AuditAction = 'U'
        --  select @NewValue = select NewValue from inserted

        end
        else  
        begin
             select @AuditAction = 'D'  
             --select @NewValue = NULL
        end
        --else
        begin


        insert into AdventureWorks2012.HumanResources.Audit.Table(PrevValue) values (@PrevValue)

        INSERT INTO AdventureWorks2012.HumanResources.Audit.Table 
(AuditUser, AuditAction, AuditDate, AuditTable, AuditHost, NewValue, PrevValue, AuditTablePK, AuditApp) 
values (SYSTEM_USER, 'I', getDate(), 'Person.Address', HOST_NAME(), @xml, @PrevValue, IDENT_CURRENT('Person.Address'), APP_NAME() )
        end 

    Insert into HumanResources.Audit.Table (AuditUser, AuditDate, AuditAction, NewValue, PrevValue, AuditTable, AuditTablePK, AuditHost, AuditApp)
    select @AuditUser, @AuditDate, @AuditAction, @xml, @PrevValue, @AuditTable, @AuditTablePK, @AuditHost, @AuditApp
    from deleted

    --end

audit.table上的prevValue只返回一个空值。删除的表值不能被触发？

谢谢

SQL Server 2012触发器。从已删除的表中写入不起作用

0 个答案: