Nette\Database\Context::query PHP Method

    public function query($sql, ...$params)
    {
        return $this->connection->query($sql, ...$params);
    }

 protected function execute(InputInterface $input, OutputInterface $output)
 {
     $this->database->query($this->getFile(self::FILE_EMAILS_TABLE));
     $this->database->query($this->getFile(self::FILE_GROUPS_TABLE));
     $this->database->query($this->getFile(self::FILE_SENDER_LIST_TABLE));
     $this->database->query($this->getFile(self::FILE_GROUP_EMAIL_TABLE));
 }