Active Record implements the [Active Record design pattern](http://en.wikipedia.org/wiki/Active_record).
The premise behind Active Record is that an individual [[yii\db\ActiveRecord]] object is associated with a specific row in a database table. The object's attributes are mapped to the columns of the corresponding table. Referencing an Active Record attribute is equivalent to accessing
The premise behind Active Record is that an individual [[yii\db\ActiveRecord|ActiveRecord]] object is associated with a specific row in a database table. The object's attributes are mapped to the columns of the corresponding table. Referencing an Active Record attribute is equivalent to accessing
the corresponding table column for that record.
As an example, say that the `Customer` ActiveRecord class is associated with the