INNER JOIN ON条件笨

Question

这是我的MySQL查询

SELECT MAX(A.BID),B.* 
    FROM tbl_bid A 
INNER 
    JOIN wl_customers B 
    ON A.customers_id=B.customers_id 
WHERE portfolio_id='$Id' 

如何编写笨此查询。

Answer 1

喜欢的东西

$this->db->select('MAX(A.BID),B.*') 
->join('wl_customers as B','A.customers_id=B.customers_id') 
->where('portfolio_id',$Id) 
->get('tbl_bid as A') 
->row(); 

Answer 2

你也可以试试。这也可以的方式

 $this->db->select('MAX(A.BID),wl_customers.*'); 
    $this->db->from('tbl_bid'); 
    $this->db->join('wl_customers ','tbl_bid.customers_id=wl_customers.customers_id'); 
    $this->db->where('portfolio_id',$Id,false) 
    $result = $this->db->get(); 

Answer 3

尝试与此查询之一。您可能还会对以下内容感兴趣：

$this->db->select("B.*","MAX(A.BID)") 
      ->from("tbl_bid A") 
      ->join("wl_customers B","A.customers_id=B.customers_id") 
      ->where("portfolio_id",$Id)->get()->result();