title: how does jms interact with the underlying database?
body: <p>I understand JMS as depicted by the following diagram:</p>
  <p><a href="https://i.stack.imgur.com/bb7yQ.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bb7yQ.gif" alt="JMS" /></a><br />
  <sub>(source: <a href="http://images.techhive.com/images/idge/imported/article/jvw/2002/10/jw-1025-jms1-100157123-orig.gif" rel="nofollow noreferrer">techhive.com</a>)</sub></p>
  <p>Is there any way for me to access the underlying database using JMS or some other thing? Further, the JDBC connections that the JMS server maintains, can I add new connections in it so as to access other databases also and do CRUD operations on them? If yes, how?</p>