如何在codeigniter中的两个数据库之间加入

Question

我遇到了使用codeigniter加入这两个数据库的问题，我尝试过使用mysql并使用它。

能有人可以将它转换为笨

这是我的代码

SELECT DATE_FORMAT(FROM_UNIXTIME(ex.extime), '%Y-%m-%d') as `export_report`, u.username as `Username`, ex.qdesc as `Search_Performed`, 
       ex.to as `Number_of_records_exported`, ex.format as `Format` 
       FROM cone.users u 
       INNER JOIN igdata.export_status as ex 
       ON u.id = ex.uid 
       WHERE DATE_FORMAT(FROM_UNIXTIME(ex.extime), '%Y-%m-%d') = '{$dateToday}' 
       ORDER BY u.username ASC 

我也把这个在我的构造

Answer 1

试试这个：

 $this->db->select("DATE_FORMAT(FROM_UNIXTIME(ex.extime), '%Y-%m-%d') as export_report, u.username as Username, ex.qdesc as Search_Performed, ex.to as Number_of_records_exported, ex.format as Format");  
     $this->db->from('cone.users u'); 
     $this->db->join('igdata.export_status as ex', 'u.id = ex.uid'); 
     $this->db->where("DATE_FORMAT(FROM_UNIXTIME(ex.extime), '%Y-%m-%d') = '$dateToday'"); 
     $this->db->order_by("u.username", "asc"); 
     $query = $this->db->get();