file datatype in laravel migration code example

Example 1: laravel rollback last migration

php artisan migrate:rollback --step=1

Example 2: laravel migration change column type

public function up()
{
    Schema::table('sometable', function (Blueprint $table) {
        $table->text('text')->change();
    });
}

Example 3: laravel migration integer

$table->bigInteger('votes');