SQL Server 使用 OUTPUT做数据操作记录

OUTPUT 子句

可以在数据进行增删改的时候，可以返回受影响的行。先准备一张表

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

---

1、insert ，影响行在inserted表里

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

返回结果：

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

批量插入：

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

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

---

2、delete ，影响行在deleted表里

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

返回结果：

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

---

3、update，会将新数据放在inserted表里，老数据放在deleted表里

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 支持将数据 插入到表里

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)