本文实例讲述了Yii2数据库操作常用方法。分享给大家供大家参考，具体如下：
查询：
// find the customers whose primary key value is 10
$customers = Customer::findAll(10);
$customer = Customer::findOne(10);
// the above code is equivalent to:
$customers = Customer::find()->where(['id' => 10])->all();
// find the customers whose primary key
