用sql脚本创建sqlserver数据库触发器范例语句

--会员表
if object_id('userinfo','u') is not null
drop table userinfo
go
create table userinfo(userid int primary key,user_tegral int,level int)
insert into userinfo select 1,0,0
go
--会员等级表
if object_id('userlevel','u') is not null
drop table userlevel
go

--插入测试数据
create table userlevel(level int primary key,mlevel_point decimal(10,2))
insert into userlevel select 0,0
insert into userlevel select 1,100
insert into userlevel select 2,200
insert into userlevel select 3,300
go



--触发器
create trigger tr_userinfor
on userinfo for update
as
begin

update a
set a.level=b.level
from userinfo a,userlevel b
where a.userid in(select userid from inserted) and a.user_tegral>=b.mlevel_point and
a.user_tegral<(select min(mlevel_point)
from userlevel where mlevel_point>b.mlevel_point)
end

--测试
update userinfo
set user_tegral=100
where userid=1

select * from userinfo


--另外一个触发器
set ansi_nulls on
set quoted_identifier on
go
alter trigger [altername]
on [dbo].[fs_user]
for insert
as
begin
set nocount on;
update dbo.fs_user set uname=(select uname from inserted)+'@ml'
where id in (select id from inserted)
end