XML SQL query not displaying result in SQLPLUS

Question

Have a registered schema and 1 xml document successfully inserted using Oracle 10.2.0.3.0
I then run the following query:
select extract(object_value,'/warehouse/warehousename')from xwarehouses;
Expecting 1 record to be returned in SQLPLUS but get the following result:
EXTRACT(OBJECT_VALUE,'/WAREHOUSE/WAREHOUSENAME')
1 row selected.
Can anyone shed any light? Is it a setting in SQLPlus

Answer 1

Thanks A Non
I still cannot see where I am going wrong!
The schema registers okay. My inserts work fine.
--register the schema
begin
dbms_xmlschema.registerSchema(
'http://www.oracle.com/xwarehouses.xsd',
'<schema xmlns="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.oracle.com/xwarehouses.xsd"
xmlns:who="http://www.oracle.com/xwarehouses.xsd"
version="1.0"
elementFormDefault="unqualified">
<simpleType name="RentalType">
<restriction base="string">
<enumeration value="Rented"/>
<enumeration value="Owned"/>
</restriction>
</simpleType>
<simpleType name="ParkingType">
<restriction base="string">
<enumeration value="Street"/>
<enumeration value="Lot"/>
</restriction>
</simpleType>
<element name = "Warehouse">
<complexType>
<sequence>
<element name = "WarehouseId" type = "positiveInteger"/>
<element name = "WarehouseName" type = "string"/>
<element name = "Building" type = "who:RentalType"/>
<element name = "Area" type = "positiveInteger"/>
<element name = "Docks" type = "positiveInteger"/>
<element name = "DockType" type = "string"/>
<element name = "WaterAccess" type = "boolean"/>
<element name = "RailAccess" type = "boolean"/>
<element name = "Parking" type = "who:ParkingType"/>
<element name = "VClearance" type = "positiveInteger"/>
</sequence>
</complexType>
</element>
</schema>',
TRUE, TRUE, FALSE, FALSE);
end;
--create the table
CREATE TABLE xwarehouses OF XMLTYPE
XMLSCHEMA "http://www.oracle.com/xwarehouses.xsd"
ELEMENT "Warehouse";
--Insert
INSERT INTO xwarehouses VALUES(
xmltype.createxml('<?xml version="1.0"?>
<who:Warehouse xmlns:who="http://www.oracle.com/xwarehouses.xsd"
xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
xs:schemaLocation="http://www.oracle.com/xwarehouses.xsd
http://www.oracle.com/xwarehouses.xsd">
<WarehouseId>1</WarehouseId>
<WarehouseName>Southlake, Texas</WarehouseName>
<Building>Owned</Building>
<Area>25000</Area>
<Docks>2</Docks>
<DockType>Rear load</DockType>
<WaterAccess>true</WaterAccess>
<RailAccess>false</RailAccess>
<Parking>Street</Parking>
<VClearance>10</VClearance>
</who:Warehouse>'));
I don't know if you see the error
Thanks again.