Друпал 8 - Запрос к Базе данных

$zapr = "SELECT tid, `name` FROM `taxonomy_term_field_data`";

$rr = \Drupal::database()->query($zapr)->fetchAllKeyed();

============================

$tel = \Drupal::database()->query($zapr)->fetchAllKeyed();

======

$query = \Drupal::database()->select('users_field_data', 'u');
$query->addField('u', 'name');
$query->condition('u.name', 'miltorg');
$r = $query->execute()->fetchObject();

print $r->name;

<?php
/**
* @return
* Contains \Drupal\summ\Controller\FirstPageController.
*/

namespace Drupal\summ\Controller;

/**
* Provides route responses for the DrupalBook module.
*/
class FirstPageController {

/**
* Returns a simple page.
*
* @return array
* A simple renderable array.
*/
public function content() {

$r = db_query("SELECT * FROM node_field_data WHERE nid=2")->fetchObject();

$element = array(
'#markup' => $r->title,
);
return $element;
}

}