How to retrieve data from XML

Question

I have a scenario where I need to read data from database of xmltype (data type)
Table Structure :
Create table Ex_Tb (id number(30),emp_data XMLType );
I can save xml content in database,
Sample
insert into Ex_Tb values( 1, xmltype ('<?xml version="1.0" encoding="UTF-8" ?><userdata><uniqueid>54321</uniqueid><name>moorthi</name><age>25</age><city>Chennai</city></userdata>'));
Data inserted .
When retrieved from DB I see the data in the generated BO as given below:
<?xml version="1.0" encoding="UTF-8" ?>
<ExteOutputCollection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.oracle.com/pcbpel/adapter/db/Exte file:/C:/JDeveloper/mywork/Application1/Project1/xsd/Exte.xsd" xmlns="http://xmlns.oracle.com/pcbpel/adapter/db/Exte">
<ExteOutput>
<SDD_XML_REQ_DATA_GETCLOBVAL__><?xml version="1.0" encoding="UTF-8" ?><userdata><uniqueid>54321</uniqueid><name>moorthi</name><age>25</age><city>Chennai</city></userdata></SDD_XML_REQ_DATA_GETCLOBVAL__>
</ExteOutput>
</ExteOutputCollection>
My Question :
1. How to retrive values of individual tags contained within the embedded XML so that it can be mapped to a BO?
Basically I would like to map uniqueId, name,age,city from xml to a BO.
Rgds,
Krishna

Answer 1

Hi Krishna,
I'm not sure but are you selecting the data from the XMLType column as given in the section Using XMLType in an SQL Statement in the below doc?
http://docs.oracle.com/cd/B10500_01/appdev.920/a96620/xdb04cre.htm#1030582
Regards,
Neeraj Sehgal