XMLPARSER.parseCLOB Error

Question

Hi all, i'm having a little trouble working with XML in pl SQL could somebody please help me? I'm the biggest noob
here is a sample of what i'm doing:
FUNCTION getXML(IdSP IN NUMBER) RETURN CLOB
is
p xmlparser.parser;
dadosAvaria dbms_xmlgen.ctxHandle;
result CLOB;
begin
dadosAvaria := dbms_xmlgen.newContext('SELECT
Id_Avaria,
num_posto,
ps,
CCO_1,
CCO_2,
Operacao,
Sub_Operacao,
AEL_A,
Servico,
def_distr,
sub_esp from r_avari1 where id_equipa = ' || IdSP);
DBMS_XMLGen.setRowTag(dadosAvaria, 'R_Acti_API_SP');
DBMS_XMLGen.SETROWSETTAG(dadosAvaria, 'ListagemAvarias');
result := DBMS_XMLgen.getXML(dadosAvaria);
p := xmlparser.newparser;
xmlparser.parseclob(p, result);
the error is what follows:
ORA-20103: Null input is not allowed
ORA-06512: at "SYS.XMLPARSER", line 33
ORA-06512: at "SYS.XMLPARSER", line 99
ORA-06512: at "PSINGLRP.PK_BD_SS_XML_SP", line 93 <---- This the line that has the PARSECLOB Statement
ORA-06512: at line 4
why does this happens, it should work right?
I'm using Oracle 9i does anybody knows where can i get more information? Pleasy it is very important and i can't seem to make a correct XML document from a query...
Thank You
Best Regards
João Lopes
Edited by: Joao Lopes on 2/Jul/2009 6:21

Answer 1

Hi again, sorry about the absence.
if result is not null then
xmlparser.parseclob(parserXML, result);
doc := xmlparser.getdocument(parserXML);
xmlparser.freeparser(parserXML);
nl := xmldom.getElementsByTagName(doc, 'ListagemAvarias');
numeroOcorrencias := xmldom.getLength(nl);
end if;
I added this code to my procedure, it seams that he detects result is null. But in the end of my procedure i added a print clob statement wich is
xmlstr := dbms_lob.SUBSTR(result,32767);
loop
exit when xmlstr is null;
line := substr(xmlstr,1,instr(xmlstr,chr(10))-1);
dbms_output.put_line('| '||line);
xmlstr := substr(xmlstr,instr(xmlstr,chr(10))+1);
end loop;
The strangest thing is that it prints the value o result in the above statement, but it detects null on the xmlparser
:S