hi,

fetch() lack the support of OCI_RETURN_LOBS (oci_fetch_array)

this is strange because oci_fetch_all (and so ->fetchAll() ) returns CLOB...

her is the way it could be :

    public function fetch($style = null, $cursor = null, $offset = null)
    {
        if (!$this->_stmt) {
            return false;
        }

        if ($style === null) {
            $style = $this->_fetchMode;
        }

        switch ($style) {
            case Zend_Db::FETCH_NUM:
                $row = oci_fetch_array($this->_stmt, OCI_NUM|OCI_RETURN_LOBS);
                break;
            case Zend_Db::FETCH_ASSOC:
                $row = oci_fetch_array($this->_stmt, OCI_ASSOC|OCI_RETURN_LOBS);
                break;
            case Zend_Db::FETCH_BOTH:
                $row = oci_fetch_array($this->_stmt, OCI_BOTH|OCI_RETURN_LOBS);
                break;
            case Zend_Db::FETCH_OBJ:
                $row = oci_fetch_object($this->_stmt);
                break;
            case Zend_Db::FETCH_BOUND:
                $row = oci_fetch_array($this->_stmt, OCI_BOTH|OCI_RETURN_LOBS);
                if ($row !== false) {
                    return $this->_fetchBound($row);
                }
                break;
            default:
                /**
                 * @see Zend_Db_Adapter_Oracle_Exception
                 */
                require_once 'Zend/Db/Statement/Oracle/Exception.php';
                throw new Zend_Db_Statement_Oracle_Exception(
                    array(
                        'code'    => 'HYC00',
                        'message' => "Invalid fetch mode '$style' specified"
                    )
                );
                break;
        }
...

maybe OCI_RETURN_LOBS should be controlled by a driver option....