Establishing Database connection for XML Data Definition?

Question

I have a XML Data Definition which will query data from Oracle Database.
I did some research and tried few setting options in JDeveloper (11g), but had no luck on finding a way to connect to Database.
My goal is to use JDeveloper to run a XML Data Definition against Database and generate a XML File with data.
Can this be done?
Data Definition:
<?xml version="1.0" encoding="WINDOWS-1252"?>
<dataTemplate name="XX_ATT_VALIDATION" description="description"
dataSourceRef="MTS-AT"
version="1.0">
<properties>
          <property name="include_parameters" value="false" />
          <property name="include_null_Element" value="true" />
          <property name="include_rowset_tag" value="false" />
</properties>
<parameters>
          <parameter name="p_batch_id" dataType="character"/>
</parameters>
<dataQuery>
     <sqlStatement name="Q_HEADER_VALUES">
          <![CDATA[
select distinct
sci.bill_cycle,
to_char(sci.bill_date,'mm/dd/yyyy') bill_date,
to_char(sysdate,'mm/dd/yyyy') report_run_date
               from st_cm_interface sci
               where sci.record_type='05'
               and sci.batch_id=:p_batch_id
          ]]>
</sqlStatement>
<dataStructure>          
     <group name="G_HEADER_VALUES" source="Q_HEADER_VALUES">
<element name="bill_cycle" value="bill_cycle"/>
<element name="bill_date" value="bill_date"/>
<element name="report_run_date" value="report_run_date"/>
</group>
</dataStructure>
</dataTemplate>

Answer 1

Hi,
Consider there is 2 database, Oracle_1 and Oracle_2.
I want to fetch some table data in Oracle_2 from Oracle_1 database Stored procedure/functions through query staments and cursors. How to establish the Oracle_1 DB connection in Oracle_2 DB stored procedure/function. Is it possible?
It's not the same how you implement the programs in java or .Net to create DB connection. It's different over here. You have use the DataBase Links in order to make to connection with another DB and use that Link in the stored procedure or function where ever its necessary as per your requirement.
- Pavan Kumar N