Oracle XMLTable / XMLTYPE (no idea)

im trying to create DataBase using OracleXE11 and what im tring to do is create XML tables and input data into them.

Step 1:

CREATE TABLE Customer( customerId int Primary KEY, signUpDate Date NOT NULL, CustomerData XMLTYPE, CustomerAdress XMLTYPE);

Step 2:

CustomerData.xml

<?xml version="1.0"?>
<CustomerData>
    <Customer>
        <name>Alex Smith</name>
        <type>Fleet</type>
        <nip>1234567890</nip>
    </Customer>
    <Customer>
        <name>Saly North</name>
        <type>person</type>
        <nip>2345678901</nip>
    </Customer>
<CustomerData>

CustomerAdress.xml

<?xml version="1.0"?>
<CustomerAdress>
    <Adress>
        <city>Xxxx</city>
        <street>Yyyy 2</Street>
        <postcode>56-200</postcode>
    </Adress>
    <Adress>
        <city>Zzzz</city>
        <Street>Uuuu 5</street>
        <postcode>57-300</postcode>
    </Adress>
<CustomerAdress>

Step 3:

CREATE OR REPLACE DIRECTORY XMLDIR AS 'C:\xml_files';

Step 4: Now i have a problem because i don't know how to input those data. I've tried to:

INSERT INTO Customer (customerId, signUpDate, CustomerData, CustomerAdress) VALUES (1, to_date('12-05-1970','dd-mm-yyyy'), XMLType(bfilename('XMLDIR', 'CustomerData.xml'), nls_charset_id('AL32UTF8')), XMLType(bfilename('XMLDIR', 'CustomerAdress.xml'), nls_charset_id('AL32UTF8')));

but it returns me 1 row (i know why... because in creating only 1 row using all xml files i've declared)

I wondered... maybe a PROCEDURE (PL/SQL) will help me with it

And another problems are (i need to use them all for update/insert/delete): - Xpath - DOM - SAX - Xquery - creating XML Schema to validate inputed XML File - write XML file from DB to file.xml on Desktop - read XML file.xml from Desktop to DB

Im not even sure if im started well with it.