Update XML data stored in CLOB Column

Question

Hi All,
i am new to Oracle and new to SQL
i am trying to update XML data stored in CLOB cloumn,data is stored with the follwoing format
<attrs><attr name="name"><string>Schade</string></attr></attrs>
i am using the following query for updating the value
UPDATE PRODUCT p SET ATTRIBUTES_nl_nl=UPDATEXML(XMLTYPE.createXML(ATTRIBUTES_nl_nl),'/attrs/attr[@name="name"]/string/text()','Schade').getClobVal() WHERE p.sku='000000000000040576_200911-5010057'
this query is working fine but it changing the data to the following format
<attrs><attr name="name">Schade</attr></attrs>
some how it is ommiting the <string> tag from it, i am unable to figure it out whats the reason.
any help in this regard will b e much appriciated
Thanks in Advance
-Umesh

Answer 1

Hi,
You should have created your own thread for this, and included database version.
This works for me on 11.2.0.2 and 10.2.0.5 :
SQL> create table t_org ( xml_clob clob );
Table created
SQL>
SQL> insert into t_org
  2  values(
  3  '<Message>
  4  <Entity>
  5  <ASSIGNMENT>
  6  <OAVendorLocation> </OAVendorLocation>
  7  <Vendorid>1</Vendorid>
  8  </ASSIGNMENT>
  9  </Entity>
10  </Message>'
11  );
1 row inserted
SQL> commit;
Commit complete
SQL> select '*' ||
  2         extractvalue(xmltype(xml_clob),'/Message/Entity/ASSIGNMENT/OAVendorLocation')
  3         || '*' as result
  4  from t_org;
RESULT
SQL> update t_org set xml_clob =
  2  updatexml(xmltype(xml_clob),
  3  '/Message/Entity/ASSIGNMENT/OAVendorLocation/text()','LONDON').getClobVal()
  4  ;
1 row updated
SQL> select '*' ||
  2         extractvalue(xmltype(xml_clob),'/Message/Entity/ASSIGNMENT/OAVendorLocation')
  3         || '*' as result
  4  from t_org;
RESULT
*LONDON*
Does the OAVendorLocation really have a whitespace value?
If not then it's expected behaviour, you're trying to update a text() node that doesn't exist. In this case, the solution is to use appendChildXML to create the text() node, or update the whole element.
Is it your real document? Do you actually have some namespaces?