Question

这就是我想要实现的目标：select * from 'mytable' where id=2 and where status=hold or status=reserved or status=deleted

如何在 CodeIgniter 3.0 中执行此操作？

我在WAMP设置工作。

Answer 1

在CodeIgniter中你可以这样使用：

$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

<强> CodeIgniter User Guide

Answer 2

也许这会有所帮助：

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

Answer 3

在 CodeIgniter 中查询：

$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

您可以使用$ this-＆gt; db-＆gt; query（）来实现此目的。

 $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

正确的SQL查询是：

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

Answer 7

啊，啊，明白了。为了防止其他人在同样的情况下遇到困难，可以在CodeIgniter中处理它。

在CodeIgniter中，我们可以像这样手动编写自己的子句：

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

Answer 8

您可以使用下面提到的查询 -

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

单个查询中的Where和Or Where子句？使用codeigniter

8 个答案: