DBMS_XMLSTORE.UpdateXML error when node is empty

Question

We are using Oracle version 11.2.0.1.0.
We are using DBMS_XMLStore.UpdateXML to directly update from XML and are having an issue when an empty node is passed within the XML.
If I pass this xml to updateXML to clear out field C1 I get an error.
<ROWSET table="My_Table">
<record>
<M_ID>47</M_ID>
<C1></C1>
<C2>999998</C2>
<C3>2010-07-12T10:00:00</C3>
<C4>Reason1</C4>
</record>
</ROWSET>
ORA-31011: XML parsing failed
ORA-19202: Error occurred in XML processing
LPX-00222: error received from SAX callback function
ORA-00927: missing equal sign
I've seen this issue listed back in 2007 and there claims to have been a fix for version 10.2.0.1.
Is there a fix or a workaround for this?

Answer 1

Hi,
This works for me on 11.2.0.2 :
SQL> create table my_table (
  2   m_id number,
  3   c1 varchar2(30),
  4   c2 number,
  5   c3 date,
  6   c4 varchar2(30)
  7  );
Table created
SQL>
SQL> insert into my_table
  2  values(47, 'TEST', 999999, null, null);
1 row inserted
SQL>
SQL> DECLARE
  2 
  3   ctx dbms_xmlstore.ctxHandle;
  4   doc xmltype := xmltype('<ROWSET table="My_Table">
  5  <record>
  6  <M_ID>47</M_ID>
  7  <C1></C1>
  8  <C2>999998</C2>
  9  <C3>2010-07-12T10:00:00</C3>
10  <C4>Reason1</C4>
11  </record>
12  </ROWSET>');
13 
14   res number;
15 
16  BEGIN
17 
18   ctx := dbms_xmlstore.newContext('MY_TABLE');
19   dbms_xmlstore.setRowTag(ctx, 'record');
20   dbms_xmlstore.setKeyColumn(ctx, 'M_ID');
21   dbms_xmlstore.setUpdateColumn(ctx, 'C1');
22   dbms_xmlstore.setUpdateColumn(ctx, 'C2');
23   res := dbms_xmlstore.updateXML(ctx, doc);
24 
25  END;
26  /
PL/SQL procedure successfully completed
SQL> select * from my_table;
      M_ID C1                 C2 C3          C4
        47                999998