單個查詢中的Where和Or Where子句？ 使用codeigniter

Question

這就是我要實現的目標： select * from 'mytable' where id=2 and where status=hold or status=reserved or status=deleted

如何在CodeIgniter 3.0中執行此操作？

我正在使用WAMP設置。

Answer 1

在CodeIgniter您可以這樣使用：

$this->db->select();
$this->db->from('mytable');
$this->db->where('id',2);
$this->db->or_where('status','hold');
$this->db->or_where('status','reserved');
$this->db->or_where('status','deleted');
$query = $this->db->get();
$query->result_array(); // will return result in array format

CodeIgniter用戶指南

Answer 2

也許這可以幫助：

$results = $this->db->where("id",2)->where_in('status',array("hold","deleted","reserved"))->get("mytable")->result();

Answer 3

在CodeIgniter中查詢：

$this->db->select();
$this->db->from('tbl_name');
$this->db->where('id',2);
$this->db->or_where('status','hold');
$this->db->or_where('status','reserved');
$this->db->or_where('status','deleted');

Answer 4

您可以為此使用$ this-> db-> query（）。

 $query= $this->db->query("select * from mytable where id=2 and (status='hold' or status='reserved' or status='deleted')");
$result=$query->result_array();

Answer 5

$this->db->select('*');
$this->db->from('mytable');
$this->db->where('id',2);
$this->db->where('status','hold');
$this->db->or_where('status','reserved');
$this->db->or_where('status','deleted');
$query = $this->db->get();
$query->result_array();

Answer 6

正確的SQL查詢是：

SELECT * FROM mytable WHERE id = '2' AND (status = 'hold' 
OR status = 'reserved' OR status = 'deleted')

Answer 7

啊哈，明白了。 萬一有人在同樣的情況下掙扎，這里就是如何在CodeIgniter中處理它。

在CodeIgniter中，我們可以像這樣手動編寫自己的子句：

$where = "name='Joe' AND status='boss' OR status='active'";
$this->db->where($where);

Answer 8

您可以使用以下提到的查詢-

select * from tbl_name where id=2 and status in ('hold','reserved','deleted');