现有会员表(userinfo),会员等级表(userlevel)
会员表中有一会员积分字段(user_tegral)会员等级表有一等级积分字段(mlevel_point)
在update会员表中的user_tegral字段,根据会员登记表中的mlevel_point来重新设置会员表中的会员等级
会员表中有一会员积分字段(user_tegral)会员等级表有一等级积分字段(mlevel_point)
在update会员表中的user_tegral字段,根据会员登记表中的mlevel_point来重新设置会员表中的会员等级
--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
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
beginupdate 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=1select * from userinfo