SQL Server 使用 OUTPUT做數據操作記錄

OUTPUT 子句

可以在數據進行增刪改的時候，可以返回受影響的行。先準備一張表

create table #t
(
    id int identity primary key 
    ,name varchar(100)
)
go

1、insert ，影響行在inserted表裡

insert into #t(name)
output inserted.*
values('a')

返回結果：

id name
----------- ----------------------------------------------------------------------------------------------------
1 a

批量插入：

insert into #t
output inserted.*
select 'b'

id name
----------- ----------------------------------------------------------------------------------------------------
2 b

2、delete ，影響行在deleted表裡

delete from #t
output deleted.id
where id = 1

返回結果：

id
-----------
1

3、update，會將新數據放在inserted表裡，老數據放在deleted表裡

update #t
set name='new value'
OUTPUT deleted.id,deleted.name,inserted.id,inserted.name  
where id=2

id name id name
----------- ---------------------------------------------------------------------------------------------------- ----------- ----------------------------------------------------------------------------------------------------
2 d 2 new value

(1 row(s) affected)

4、OUTPUT INTO 支持將數據 插入到表裡

DECLARE @outputTable TABLE(name1 varchar(100),name2 varchar(100))

update #t
set name='new value 3'
OUTPUT deleted.name,inserted.name into @outputTable
where id=2
 
SELECT * FROM @outputTable

(1 row(s) affected)
name1 name2
---------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------
new value new value 3

(1 row(s) affected)

https://docs.microsoft.com/zh-cn/previous-versions/sql/sql-server-2005/ms177564(v%3dsql.90)