Para instalar el package lo haremos de la siguiente forma:
Lavarel 4.2
composer require yajra/laravel-datatables-oracle:~3.0
Service Provider
yajra\Datatables\DatatablesServiceProvider
Facade
'Datatables' => 'yajra\Datatables\Facades\Datatables',
Make config file
php artisan conf[textig:publish yajra/laravel-datatables-oracle
* http://yajra.github.io/laravel-datatables/
Ejemplo de uso
$users = User::query(); return Datatables::of($users)->make();

