title: extract value using regular expression in mysql
body: <p>I am storing values in database like this</p>
  
  <pre><code>www/content/lessons/40/Digital Library/document1.doc
  </code></pre>
  
  <p>I need to extract the file <strong>document.doc</strong>.</p>
  
  <p>How to retrieve this value from mysql using regular expression.</p>