mysql 用触发器记录操作

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mysql 不能在一个触发器中进行insert,update,delete操作，需分别建三个触发器

insert触发器：

delimiter $$
create trigger tri_city_insert
after insert 
on t_xfw_city 
for each row
begin
    insert into t_tri_city(id,name,provinceid,ctype) 
    values(new.id,new.name,new.provinceid,1);
end

update触发器：

delimiter $$
create trigger tri_city_update
after update 
on t_xfw_city 
for each row
begin
    insert into t_tri_city(id,name,provinceid,ctype) 
    values(new.id,new.name,new.provinceid,2);
end

delete触发器：

delimiter $$
create trigger tri_city_delete
after delete 
on t_xfw_city 
for each row
begin
    insert into t_tri_city(id,name,provinceid,ctype) 
    values(old.id,old.name,old.provinceid,3);
end

对一个表建三个触发器有些麻烦，不知道还有没有好点的方法