触发器

alter trigger t_tb on tb for update

as

if(update(次数_天数))

begin

   --update tb set 次数_天数='22' where autoid='1'

   select autoid from deleted

end

 

 

 

 

 

create trigger tri_os on 表名 for update,delete

as

if exists(select 1 from inserted) and exists(select 1 from deleted)--修改时

begin

          --.........

end

if not exists(select 1 from inserted) and exists(select 1 from deleted)--删除时

begin

          --.........

end