HOW TO USE isSchemaValid() in oracle 9i to validate XML against XSD

Question

Hi
I am trying to validate xml file against xsd in oracle 9i.The steps are as follows:
*1.Created directory for xml and xsd file location:*
CREATE or replace DIRECTORY XML_DATA AS 'D:\prod\sample xml and xsd;
*2.Register the schema*
DECLARE
bf5 BFILE;
BEGIN
-- Register the schema
dbms_lob.filecloseall;
bf5 := BFILENAME('XML_DATA','xml1.xsd');
DBMS_XMLSCHEMA.registerSchema('http://www.example.com/schemas/ipo.xsd',bf5,TRUE, TRUE, FALSE,TRUE,TRUE);
-- dbms_lob.fileclose(bf5);
END;
*3.creatibg table to store xml files*
CREATE TABLE po_tab2 (id NUMBER,xmlcol SYS.XMLType) ;
*4.Inserting xml file into the table and validating that file with xml schema*
declare
aa clob:=' ';
b varchar2(4000);
c xmltype;
begin
dbms_lob.filecloseall;
aa:= GETCLOBDOCUMENT('XML_DATA','example.XML','WE8MSWIN1252');
INSERT INTO po_tab2 (ID, XMLCOL)
VALUES
(104,sys.XMLType.createXML(aa));
commit;
--c:=sys.xmltype.createXml(aa);
c:=xmltype(aa);
b:=VerifyXML(c,'http://www.example.com/schemas/ipo.xsd');
dbms_output.put_line(b);
end;
_5.VerifyXML function is:_
create or replace
function VerifyXML( xml xmltype, xmlSchema varchar2 ) return varchar2 AUTHID DEFINER is
xmlURL varchar2(4000);
begin
select
s.qual_schema_url into xmlURL
from user_xml_schemas s
where s.schema_url = xmlSchema;
if xml.isSchemaValid(xmlURL,'ManageRolloutRegionNotification') =1 then
return( 'Valid. The supplied XML complies with XSD '||xmlURL );
else
-- return null;
return(sqlcode|| 'Failed. The supplied XML does not comply with XSD '||xmlURL );
end if;
exception when others then
return(sqlcode);
end;
_6.PROBLEM:_
the problem is the function is always returning 'Failed ' status even though I am giving the correct file.. Is there any method to find the reason for failure. These codes are working fine oracle 11g. currently i am working in 9i version 9.2.0.1.0. I

Answer 1

Oracle 9iR2 is not supported anymore.
Oracle 9.2.0.8 is in sustained support.
Oracle 9.2.0.1 is not supported at all.
Upgrade to 11gR2.
Sybrand Bakker
Senior Oracle DBA