我要评论本文实例讲述了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->db
->createcommand()
->insert('表名',['car_num' => $car_num, 'lg_shop_id' => $shop_id])
->execute();
batchinsert()：一次添加多行
// table name, column names, column values
yii::$app->db->createcommand()->batchinsert('user', ['name', 'age'], [
['tom', 30],
['jane', 20],
['linda', 25],
])->execute();
修改
// update (table name, column values, condition)
yii::$app->db->createcommand()->update('user', ['status' => 1], 'age > 30')->execute();
删除
// delete (table name, condition)
yii::$app->db->createcommand()->delete('user', 'status = 0')->execute();
查询条件
$status = 10;
$search = 'yii';
$query->where(['status' => $status]);
if (!empty($search)) {
$query->andwhere(['like', 'title', $search]);
}
如果 $search 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 = new query();
$query->from('{{%shop_info}}');
$query->where('shop_type=1');
$query->select('shop_name');
$rea = $query->all();//查询
$res = $query->createcommand();//打印sql
echo $res->sql;die;
var_dump($rea);die;
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