ISO-8859-1 characters in xmlDom.domDocument

Question

-- Oracle8i Enterprise Edition Release 8.1.7.0.0 - Production
-- JServer Release 8.1.7.0.0 - Production
-- Oracle XML Parser 2.0.2.9.0 Production
-- OS: Windows 2000 Professional
-- NLS_LANG in Oracle is: AMERICAN_AMERICA.UTF8
-- NLS_LANG in registry (client) is set to: SWEDISH_SWEDEN.WE8ISO8859P1
-- Description: Getting corrupt characters instead of the
-- Swedish characters "edv" after parsing the clob.
-- Output after running this script in sqlplus:
--| BEFORE
--| -----------------------------------------------------------------------
--| AFTER
--| -----------------------------------------------------------------------
--| <?xml version="1.0" encoding="ISO-8859-1"?><asdf>aaa edv aaa</asdf>
--| <?xml version = '1.0' encoding = 'ISO-8859-1'?>
--| <asdf>aaa ??? aaa</asdf>
--|
set serveroutput on
drop table xmltest;
create table xmltest
(before clob
,after clob);
declare
beforeClob clob;
afterClob clob;
xdoc xmldom.domdocument;
parser xmlparser.Parser;
begin
insert into xmltest
values('<?xml version="1.0" encoding="ISO-8859-1"?><asdf>aaa edv aaa</asdf>', empty_clob())
returning after into afterClob;
select before
into beforeClob
from xmltest;
parser := xmlparser.newParser;
xmlparser.parseCLOB(parser,beforeClob);
xdoc := xmlparser.getDocument(parser);
xmlparser.freeParser(parser);
dbms_output.put_line('Parsed xml charset: '||xmldom.getCharset(xdoc));
xmldom.writeToClob(xdoc, afterClob, 'WE8ISO8859P1');
commit;
end;
select * from xmltest;

Answer 1

Hi,
This is a known issue. Within CLOB, Oracle DB will always store data in UTF-8, so the encoding setups will not work.
Thanks.