yii2.0框架数据库操作简单示例【添加，修改，删除，查询，打印等】

本文实例讲述了yii2.0框架数据库操作。分享给大家供大家参考，具体如下：

添加

$id = \yii::$app-&g中国公安人民大学t;db-善假于物>createcommand()->inrt('表名',['car_num' => $car_num, 'lg_shop_id' => $shop_id])->execute();batchinrt()：一次添加多行// table name, column names, column valuesyii::$app->db->createcommand()->batchinrt('ur', ['name', 'age'], [  ['tom', 30],  ['jane', 20],  ['linda', 25],])->execute();

修改

// update (table name, column values, condition)yii::$app->db->createcommand()->update('ur', ['status' => 1], 'age > 30')->execute();

删除

// delete (table name, condition)少林鹰爪功yii::$app->db->createcommand()->delete('ur', 'status = 0')->execute();

查询条件

$status = 10;$arch = 'yii';$query->where(['status' => $status]);if (!empty($arch)) {  $query->andwhere(['like', 'title', $arch]);}

如果 $arch 不为空，那么将会生成如下 sql 语句：

... where (`status` = 10) and (`title` like '%yii%')

查询以及打印查询sql

$query = ne教室标语w query();    $query->from('{{%shop_info}}');    $query->where('shop_type=1');    $query->lect('shop_name');    $rea = $query-&g芳草萋萋的意思是什么t;all();//查询    $res = $query->createcommand();//打印sql    echo $res->sql;die;    var_dump($rea);die;