没道理啊,insert into ring_infor(id,ring_name,type,chord,cp)(select a.id,a.name,b.id as type_id,a.top_chord,'0' from ringtone as a ,type_infor as b,ring_infor as c where (a.cat=b.cat_chi and a.subcat=b.subcat_chi and a.id!=c.id)) a.id!=c.id 这个应该就已经阻止了相同的id出现了啊
a.id!=c.id 这个应该就已经阻止了相同的id出现了啊