title: Retrieve only hour from Timestamp field stored in DB
body: <p>I have a table with differents fields. Some are String, others are Timestamp(6) in DB.
  The issue is when I display data from this table, I got this for the Timestamp fields:</p>
  
  <blockquote>
    <p>15/12/10 00:03:00,000000000</p>
  </blockquote>
  
  <p>I would like to store and display only hour like this:</p>
  
  <blockquote>
    <p>00:03:00</p>
  </blockquote>
  
  <p>Nothing else.
  I retrieve the data from DB via a web method in java. I'm using Hibernate with DAO pattern.</p>
  
  <p>What changes I have to do ? 
  There is a method to extract only hour maybe ?</p>
  
  <p>Thanks !</p>