Question

你好我有这个MYSQL QUERY

 public function getInvoices($data,$date1,$date2)
{
    $get = "Select count(*) as count,
              str_to_date(concat(yearweek(date),'monday'),'%X%V %W') as date,
              DATE_ADD(str_to_date(concat(yearweek(date),'monday'),'%X%V %W'),INTERVAL 6 DAY) as endDate
              FROM affilitechargebackResponse
              WHERE companyID = ".$data."
              AND date >=".$date1."
              AND date <=".$date2."
              AND process = 1
              group by yearweek(date);";
   $query = $this->db->query($get);
   return $query->result();
}

我不知道为什么没有任何东西会返回，即使我有数据库中的数据。当我删除行AND date <=".$date2."时，代码将从db ...返回数据。我尝试BETWEEN仍然返回null

Answer 1

 AND date >=".$date1."
 AND date <=".$date2."

到

 AND date >='".$date1."'
 AND date <='".$date2."'

Answer 2

在单引号中使用日期，然后重试。

$get = "Select count(*) as count,
              str_to_date(concat(yearweek(date),'monday'),'%X%V %W') as date,
              DATE_ADD(str_to_date(concat(yearweek(date),'monday'),'%X%V %W'),INTERVAL 6 DAY) as endDate
              FROM affilitechargebackResponse
              WHERE companyID = ".$data."
              AND date >='".$date1."'
              AND date <='".$date2."'
              AND process = 1
              group by yearweek(date);";

Answer 3

试试这个会起作用：

$get = "Select count(*) as count,
              str_to_date(concat(yearweek(date),'monday'),'%X%V %W') as date,
              DATE_ADD(str_to_date(concat(yearweek(date),'monday'),'%X%V %W'),INTERVAL 6 DAY) as endDate
              FROM affilitechargebackResponse
              WHERE companyID = ".$data."
              AND date >='".$date1."'
              AND date <='".$date2."'
              AND process = 1
              group by yearweek(date);";

从date1和date2删除双引号。使用单引号。

Mysql Query将在日期返回null

3 个答案: