title: Searching for a Java embeded database framework/engine
body: <p>I'm trying to develop a small Java application using a database. I don't want to use any external database source like postgreSQL.</p>
  
  <p>Can anyone recommend a good embedded persistent database engine, allowing me to create and query tables and store data?</p>
  
  <p>Jetty allows developers to integrate a webserver in a Java application. Does a similar engine exist for databases?</p>
  
  <p>Thanks</p>