之前,在项目的管理员后台删除会员信息的时候,要求与会员相关的所有表信息删除。这里的删除,指的都是逻辑删除,即将记录的状态置为删除状态,不是从数据库直接删除的物理删除。尽管最后项目经理要求不采用触发器的方案,采用在程序端置状态的方式来实现,还是来mark一下,就算是对Sql server触发器复习一下吧。
该触发器的代码如下所示:
1: ---在membership会员信息表里面删除指定membershipid的企业会员时(实际上没有进行物理删除,只是将status置为-1)
2: ---将与企业会员有关的信息表里面的相关信息进行逻辑删除,即status置为-1
'membership_update')
4: Drop Trigger membership_update
5: Go
6: create trigger membership_update
7: on Membership
for update
as
10: begin
int
12: select @membershipid=Membershipid,@status=Status from inserted;
if @status=-1
14: begin
where membershipid=@membershipid;
where membershipid=@membershipid;
where membershipid=@membershipid;
where membershipid=@membershipid;
where membershipid=@membershipid;
where membershipid=@membershipid;
where membershipid=@membershipid;
where membershipid=@membershipid;
where membershipid=@membershipid;
24: end
25: end