Need help with an XML-based SQL query

Question

Hello, everyone:
I get 'no rows selected' from the following queries:
SELECT extractValue((p.entity_types_xml), '/entities/test[a=fagioli]')
FROM entity_types p
WHERE
existsNode(p.entity_types_xml,
'/entities/test/text()') = 1;
SELECT extractValue((p.entity_types_xml), '/entities/test/text()')
FROM entity_types p
WHERE
existsNode(p.entity_types_xml, '/entities/test/text()') = 1;
SELECT
extractValue(p.entity_types_xml,'/entities/ARFinance-elem/entity-type')
FROM entity_types p
WHERE
existsNode(p.entity_types_xml,'/entities/ARFinance-elem/ARFinanceTBD/text()') = 1;
where the entity_types table looks like this:
SQL> desc entity_Types;
Name Null? Type
ENTITY_TYPES_ID NOT NULL VARCHAR2(36)
ENTITY_TYPES_XML NOT NULL XMLTYPE
CLIENT_ID VARCHAR2(30)
and the XML fragment looks like this:
+++++++++++++++++++++++++++++++++++++
<?xml version="1.0" encoding="UTF-8"?>
<entities
xmlns="http://www.thirdpillar.com/xml/namespace/aom/entity"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.thirdpillar.com/xml/namespace/aom/entity ../generated/denormalized-schema.0.xsd">
<test a="fagioli">pasta</test>
<ARFinance-elem>
<uid b="pasta">123</uid>
<entity-type><![CDATA[ARFinance]]></entity-type>
<ARFinanceTBD>tobedetermined</ARFinanceTBD>
</ARFinance-elem>
++++++++++++++++++++++++++++++++++++++++++++
As you can see, there is data in /entities/test[@a] as well as /entities/test/text(),
so why aren't any of the queries returning the preceding XML fragment? Suggestions welcome and appreciated....
Regards,
Oswald
ps: I'm sure I've overlooked something simple.

Answer 1

Oswald,
I think you need to add the namespace
select extractValue(.....','xmlns:xsi="http://www.thirdpillar.com/xml/namespace/aom/entity"')
from entity_types p