Question

我正在使用Codeigniter，但有一个查询无法正常工作。我有3个名为tbl_lead, tbl_bankdata, tbl_payment_invoice的表。两个表联接没有问题。我在表tbl_payment_invoice上遇到了问题。

问题是，我要在tbl_payment_invoice表中插入付款状态。可以是bank_id的多个状态。

我必须显示tbl_payment_invoice中用户的最新状态。

tbl_payment_invoice表结构

p_i_id | payment_invoice|payment_invoice_date |bank_id |payment_invoice_by
1      | 1              | 2019-09-29 20:39:12 |33      |1
2      | 2              | 2019-09-29 20:39:43 |33      |1
3      | 1              | 2019-09-29 20:40:02 |05      |1
4      | 1              | 2019-09-29 20:45:12 |20      |1
5      | 2              | 2019-09-29 20:50:38 |05      |1
6      | 2              | 2019-09-29 21:10:12 |20      |1
7      | 1              | 2019-09-29 21:15:40 |10      |1

我的预期输出是来自此表

p_i_id | payment_invoice|payment_invoice_date |bank_id |payment_invoice_by
2      | 2              | 2019-09-29 20:39:43 |33      |1
5      | 2              | 2019-09-29 20:50:38 |05      |1
6      | 2              | 2019-09-29 21:10:12 |20      |1
7      | 1              | 2019-09-29 21:15:40 |10      |1

我必须显示bank_id的最后一条记录。

您能帮我了解如何与join一起使用吗？

public function disbursed_Leadlist(){
if($this->session->userdata['login_session']['access_role']==5){
   $or_where="tbl_bankdata.b_filestatus=1  AND createby='".$this->session->userdata['login_session']['id']."'"; 
}
else{
    $or_where="tbl_bankdata.b_filestatus=1";
}

$result = $this->db->select('*')
                  ->from('tbl_lead')
                  ->join('tbl_bankdata','tbl_lead.c_id=tbl_bankdata.lead_id','LEFT')
                  ->join('tbl_payment_invoice','tbl_bankdata.bank_id=tbl_payment_invoice.bank_id','LEFT')
                  ->where($or_where)
                  ->order_by('tbl_lead.date_of_created','DESC')
                  ->get()
                  ->result();
                       // echo $this->db->last_query();
                  return $result;
  }

Answer 1

我将 max（payment_invoice）更改为 max（payment_invoice）作为Payment_invoice ，我认为这种扭曲是有效的。

$result = $this->db->select('*')
        ->from('tbl_lead')
        ->join('tbl_bankdata','tbl_lead.c_id=tbl_bankdata.lead_id','LEFT')
        ->join('tbl_bankname','tbl_bankname.b_id=tbl_bankdata.b_bankname')
        ->join('(select bank_id, max(payment_invoice) as payment_invoice, max(payment_invoice_date) as dateofadded from tbl_payment_invoice group by bank_id) as p_i','tbl_bankdata.bank_id=p_i.bank_id','LEFT')
        ->where($or_where)
        ->order_by('tbl_lead.date_of_created','DESC')
        ->get()
        ->result();

        print_r($result);

Answer 2

-> join（'（选择bank_id，max（payment_invoice），max（payment_invoice_date）作为从bank_id从tbl_payment_invoice组添加的日期）作为p_i'，'tbl_bankdata.bank_id = p_i.bank_id'，'LEFT'）。

将max（payment_invoice）更改为payment_invoice，并将查询位置更改为p_i.payment_invoice =''，因为您正在从子查询中创建临时表p_i。

Answer 3

您更改表名并尝试此代码...

$paidrefid = $CI->session->userdata('login_data');

    $CI->db->select('*');
    $CI->db->from('tbl_refrralcash a');
    $CI->db->join('tbl_cashback_ReqJoint b','b.cashbackID = a.id', 'left');
    $CI->db->join('tbl_cashback_request c','c.id = b.cashback_RequestID', 'left');
    $CI->db->where('a.cash_referralid',$paidrefid);
    $CI->db->where('a.paid_status','1');
    $CI->db->where('c.status','0');
    $CI->db->where('b.type','2');
    $query = $CI->db->get();
    $Reqreferal = $query->result_array();

Answer 4

尝试

public function disbursed_Leadlist() {
    if ($this -> session -> userdata['login_session']['access_role'] == 5) {
        $or_where = "tbl_bankdata.b_filestatus=1  AND createby='" . $this -> session -> userdata['login_session']['id'] . "'";
    } else {
        $or_where = "tbl_bankdata.b_filestatus=1";
    }

    $result = $this -> db -> select('*,t3.payment_invoice_date') 
    -> from('tbl_lead') 
    -> join('tbl_bankdata', 'tbl_lead.c_id=tbl_bankdata.lead_id', 'LEFT')
    -> join ('(select max(payment_invoice_date) as payment_invoice_date,bank_id from tbl_payment_invoice group by bank_id) t3','t3.bank_id=tbl_bankdata.bank_id','left')
    -> where($or_where) -> order_by('tbl_lead.date_of_created', 'DESC')
    -> get() -> result();
    return $result;
}

如何获取联接中每个bank_id的最新记录

4 个答案: