在游戏开发,或者web开发过程中,我们常常需要将符合格式的数据,导入到我们自己的mysql数据库中,这样既方便,有省事.可以分工明确,你只需要提供相应的规范,策划或者其他人员按照你的文

删除b表中与a表不同的记录 delete from b where not exists( select * from a where a.id=b.id and a. name =b. name ) delete from b where b.id not in ( select a.id from a) or b. name not in ( select a. name from a） delete from v9_pho

update v9_hits SET hitsid = REPLACE(hitsid,c-12-,c-13-) where 1 = ( case when(select COUNT(*) from v9_photo where id=replace(hitsid,c-12-,))0 then 1 else 0 end) updatev9_hitsSEThitsid=REPLACE(hitsid,c-12-,c-13-) fromv9_hits,v9_photowhereid=