Database character set = UTF-8, but mismatch error on XML file upload

Question

Dear experts,
I am having problems trying to upload an XML file into an XMLType table. The Database is 9.2.0.5.0, with the character set details:
SELECT *
FROM SYS.PROPS$
WHERE name like '%CHA%';
Query results:
NLS_NCHAR_CHARACTERSET          UTF8     NCHAR Character set
NLS_SAVED_NCHAR_CS          UTF8
NLS_NUMERIC_CHARACTERS          .,     Numeric characters
NLS_CHARACTERSET          UTF8     Character set
NLS_NCHAR_CONV_EXCP          FALSE     NLS conversion exception
To upload the XML file into the XMLType table, I am using the command:
insert into XMLTABLE
values(xmltype(getClobDocument('ServiceRequest.xml','UTF8')));
However, I get the error:
ORA-31011: XML parsing failed
ORA-19202: Error occurred in XML processing
LPX-00200: could not convert from encoding UTF-8 to UCS2
Error at line 1
ORA-06512: at "SYS.XMLTYPE", line 0
ORA-06512: at line 1
Why does it mention UCS2, as can't see that on the Database character set?
Many thanks for your help,
Mark

Answer 1

USC2 is known as AL16UTF16(LE/BE) by Oracle...
Try using AL32UTF8 as the character set name
AFAIK The main difference between Oracle's UTF8 and AL32UTF8 character set is that is the UTF8 character set does not support those UTF-8 characteres that require 4 bytes..
-Mark