KoMiles 少壮不努力，长大搞IT。

摘要： update a left join c on a.id = c.id set a.body = c.c1 where a.id=c.id;update zcat as z left join zcat_bak_1212 as zb on z.zcatId = zb.zcatId set z.zcatName = zb.zcatName where z.zcatName is null; 阅读全文