Error while creating AW using DBMS_LOB with XML..

Question

Hi All,
I am trying to create AW using DBMS_LOB package with XML,
while creating AW,i am facing the following error.find the code also below :
declare
xml_awcreate_clob clob;
xml_awcreate_st varchar2(4000);
begin
DBMS_LOB.CREATETEMPORARY(xml_awcreate_clob,TRUE);
dbms_lob.open(xml_awcreate_clob, DBMS_LOB.LOB_READWRITE);
dbms_lob.writeappend(xml_awcreate_clob, 48, '<?xml version = ''1.0'' encoding = ''UTF-8'' ?>');
dbms_lob.writeappend(xml_awcreate_clob, 43, '');
dbms_lob.writeappend(xml_awcreate_clob, 63, '<AWXML version = ''1.0'' timestamp = ''Mon Feb 11 13:29:11 2002'' >');
dbms_lob.writeappend(xml_awcreate_clob, 15, '<AWXML.content>');
dbms_lob.writeappend(xml_awcreate_clob, 25, ' <Create Id="Action41">');
dbms_lob.writeappend(xml_awcreate_clob, 19, ' <ActiveObject >');
dbms_lob.writeappend(xml_awcreate_clob, 163, ' <AW Name="NEW_XML_AW" LongName="NEW_XML_AW" ShortName="NEW_XML_AW" PluralName="NEW_XML_AW" Id="NEW_XML.AW"/>');
dbms_lob.writeappend(xml_awcreate_clob, 19, ' </ActiveObject>');
dbms_lob.writeappend(xml_awcreate_clob, 11, ' </Create>');
dbms_lob.writeappend(xml_awcreate_clob, 16, '</AWXML.content>');
dbms_lob.writeappend(xml_awcreate_clob, 8, '</AWXML>');
dbms_lob.close(xml_awcreate_clob);
xml_awcreate_st := sys.interactionExecute(xml_awcreate_clob);
end;
ORA-21560: argument 2 is null, invalid, or out of range
ORA-06512: at "SYS.DBMS_LOB", line 833
ORA-06512: at line 12
Any idea or thought on this would be appreciable.
Thanks in advance.
Anwar

Answer 1

Did you change any of the text in the lob write statements ?
I believe you get this error if you increase the number of characters without increasing the 1st argument which looks as though it represents the number of characters