Question

我想获得上周的数据。我尝试了很多方法，但总是得到错误或修女结果。

$query = "SELECT `toy1`,`toy2`
    FROM
      `tabel`
          WHERE `data1` != 'str' &&`data2` = 'str' && `date_row` >= '2014/12/08' AND `postdate` <= '2014/12/01' Limit 0,6";
     $q = $this->db->query($query);
          $rr = $q->result();

Answer 1

您的查询运算符检查更大和更小是错误的。你需要检查以下内容：

`date_row` <= '2014/12/08' AND `postdate` >= '2014/12/01'

Answer 2

$this->db->select('toy1,toy2');
$this->db->from('tabel');
$this->db->where('data1 !=','str');
$this->db->where('data2 !=','str');
$this->db->where('date_row >= ', date('Y/m/d', strtotime('-1 week')));
$this->db->where('postdate >= ', date('Y/m/d', strtotime('-1 week')));
$this->db->limit(7);
$query = $this->db->get();
if($query->num_rows > 0)
{
    $result = $query->result_array();
        // get your array
}
else
{
    echo 'no result';
}

Answer 3

尝试使用以下代码。它会解决你的问题。

$this->db->select('toy1,toy2');
$this->db->from('tabel');
$this->db->order_by('postdate','desc');
$this->db->limit(7);
$query = $this->db->get();
$result = $query->result_array();

$ result变量已经存储了上周的数据。使用以下代码打印数据。

print '<pre>';
print_r($result);

Answer 4

$query =   SELECT * FROM "tablename" 
           WHERE "date" >= '2014-12-30' AND "date" <= '2014-12-01'
$q = $this->db->query($query);
$rr = $q->result();

如何按日期从数据库获取数据到使用codeigniter

4 个答案: