$sql = "(select {$this->fields} "." from {$curTable} " ." {$this->where} {$endwhere} order by {$this->orderByField} {$this->orderBy}) "; } else { $sql = "(select {$this->fields} "." from {$curTable} " ." {$this->where} order by {$this->orderByField} {$this...
} else { $this->db->order_by("category", "asc"); } 但是,我得到了这个错误: Error Number: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'Couch'`, `'Bed'`, `'Desk` & Office', `'Bike...
// Note that the second parameter of the get_compiled_select method is FALSE $sql = $this->db->select(array('field1','field2')) ->where('field3',5) ->get_compiled_select('mytable', FALSE); // ... // Do something crazy with the SQL code... like add it to a cron script...
if(isset($options['sortBy'])) $this->db->order_by($options['sortBy'], $options['sortDirection']); $query = $this->db->get('users'); if($query->num_rows() == 0) return false; if(isset($options['userId']) && isset($options['userEmail'])) { // If we know that we'r...
if($this->user_model->UpdateUser(array('userId' => 3, 'userName' => 'Shawn', 'userEmail' => 'not telling'))) // The user has been successfully updated else // The user was not updated 用户身份验证(查找单一用户) $user = $this->user_model->GetUsers(array('userEmail' => $use...
发布于 3 月前 ✅ 最佳回答: 外部变量必须使用“use” if ($order_by) { usort($data['items'], function ($a, $b) use ($order_by) { return $b['value'][$order_by] <=> $a['value'][$order_by]; }); } 本站已为你智能检索到如下内容,以供参考: 🐻 相关问答 7 个 1、从...
$ids = [1,2,3,4,5] ->where_in('id',[Math Processing Error]ids);−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−ids是一个数组 ->where_not_in('id',$ids);---与上对立 $array = array('...
1 2 3 ->order_by('title DESC, name ASC');---title降序name升序 ->order_by('name','RANDOM');---随机排序,第一个参数无实际意义,但是要写,随机嘛,谈不上根据哪个字段随机了五、分页1 2 3 ->limit(10);---未设置偏移量,那么默认偏移...
The number of records returned by the query. Make sure to call the method using your query result object: <?php$query=$db->query('SELECT * FROM my_table');echo$query->getNumRows(); Note Because SQLite3 lacks an efficient method returning a record count, CodeIgniter will fetch and buffe...
“注意:MySQL是在8.0才引入的窗口函数功能;属于MySQL8的新特性二、结构“递归查询通常包含以下几个关键元素:初始查询(Anchor Query):这是递归查询的起点,返回初始结果集。...INTO `organization`(`org_id`, `org_name`, `parent_id`, `org_level`) VALUES (7, '华南-深圳公司', 3, 3); 5.3 使用递归...