How to load xml with base64 big element using sqlldr

Hello
I'm trying to load xml data into Oracle 10 g 2. I want to use tool standard sqlldr if possible.
(1) I recorded my schema successfully:
-Put the 6kbytes schema in a table
- and
DECLARE
schema_txt CLOB.
BEGIN
SELECT the text IN schema_txt patterns;
DBMS_XMLSCHEMA.registerschema ("uddkort.xsd", schema_txt);
END;
-Success: I can create table like:
CREATE TABLE XMLTYPE XmlTest
XMLSCHEMA 'uddkort.xsd '.
ELEMENT 'profile '.
;
-USER_XML_TABLES shows:
XMLSCHEMA, SCHEMA_OWNER, NOM_ELEMENT, TABLE_NAME, STORAGE_TYPE
"XMLTEST", "uddkort.xsd", "THISE", "profile", "OBJECT-RELATIONAL".

(2) how can I load XML data into that?
-An element of the schema is < xs: element name = "billede" type = "xs: base64Binary" minOccurs = "0" / >
-This data field may be 10kbytes or more

I tried many control files - search the net but no luck so far.
Any suggestions?
/ Christmas, DK

I regret - it seems, Miss me some basic understanding here (XBD is new to me...):

Reread this part of the documentation on the XML to mappings of SQL types:
http://download.Oracle.com/docs/CD/B19306_01/AppDev.102/b14259/xdb05sto.htm#sthref831

When you save the relational storage schema object, Oracle creates SQL object types to support the underlying structure.
In particular (see table 5-6 in the link), XS: base64Binary is mapped to a compatible SQL binary data type: RAW (default), or BLOB (if we use the annotation).

In my example, the generated object type is:

SQL> desc "image888_T"
 Nom                                       NULL ?   Type
 ----------------------------------------- -------- ----------------------------
 SYS_XDBPD$                                         XDB.XDB$RAW_LIST_T
 name                                               VARCHAR2(4000 CHAR)
 content                                            BLOB

I don't understand how this can be (is) done automatically?

When you load an XML instance in the table, the contents of the string encoded in base64 is automatically converted into format binary original and stored as a BLOB (that's works the mapping).
Then, when you run:

select extractvalue(t.object_value, '/image/content') from images_table t;

It follows a BLOB column containing the original image, not the string base64, so you won't need a converter.

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