MYSQL关联视图查询数据慢

将视图定义代码直接写入查询语句web select * ,concat(man_mobile1,' ',man_mobile2,' ',man_mobile3) as man_mobile from `car` join `company` on car_company_id=company_id left join `man` on car_master_id=man_id left join
相关文章
相关标签/搜索