N98\Magento\Command\Database\Maintain\CheckTablesCommand::_query PHP Method

    protected function _query($sql)
    {
        /** @var \PDO $connection */
        $connection = $this->dbHelper->getConnection($this->output);
        $query = $connection->prepare($sql);
        $query->execute();
        $result = $query->fetch(\PDO::FETCH_ASSOC);
        return $result;
    }