External Database Connection

Hi,
I have to display columns from two tables using HibernateDAO. The information to connect to the second table is stored in the first table. How can I use the host,username and password stored in one table to connect to another table and display columns from both the tables in one page?

You can start with http://docs.jboss.org/hibernate/core/3.3/reference/en/html/session-configuration.html#configuration-programmatic
Then follow thid CRUD tutorial: http://facestutorials.icefaces.org/tutorial/hibernate-tutorial.html
skipping the irrelevant xml configurations

Thankyou!!

Dear Tudor Raneti,
I am able to connect to different databases making two different connections. But i am unable to save the data into a table when both the connections are open.
Deepa