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[Решено] Подскажите, как модифицировать sql-запрос?

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Столкнулся с sql-запросом. В них понимаю плохо, прошу подсказать:


Есть запрос к базе данных:
$query = $this->db->query("SELECT * FROM " . DB_PREFIX . "product_to_category WHERE product_id = '" . (int)$product_id . "'");
Нужно переписать запрос так, чтобы он вытягивал еще из таблицы DB_PREFIX . "category" поле sort_order (по полю category_id, которое есть в обеих таблицах), и сортировал по нему по убыванию.

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SELECT p2c.*, c.sort_order FROM " . DB_PREFIX . "product_to_category p2c

LEFT JOIN " . DB_PREFIX . "category c ON (c.category_id = p2c.category_id)

WHERE product_id = '" . (int)$product_id . "' ORDER BY c.sort_order

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