public function bindParam($param, &$value, $type=null, $leng=null, $driver=null)
    {
        $ok = false;
        try {
            $param = $this->_getBindVar($param);
            if ($type && $leng) {
                $ok = \oci_bind_by_name($this->_stmt, $param, $value, $leng, $this->_pdoToOciType($type));
            } else {
                $ok = \oci_bind_by_name($this->_stmt, $param, $value);
            }
            $this->_binds[$param] = $value;
        } catch (\Exception $e) {
            throw new \PDOException($e->getMessage());
        }
        return $ok;
    }