标题: mysql join 基础的使用方法 [打印本页] 作者: admin 时间: 昨天 14:07 标题: mysql join 基础的使用方法 $user = $db -> select("a.*,count(a.id) as user_num,b.OP_Userlevename as userclasstitle","
ourphp_user a
LEFT JOIN ourphp_userleve b ON b.id = a.OP_Userclass
","where a.id = ".intval($userid));