title: SQL Query to get countries
body: <p>I have a table with the fileds  </p>
  
  <p>Table Name:<br>
  <strong>CountriesInfo</strong></p>
  
  <pre>
  country | continent
  --------|----------
  India   | Asia
  China   | Asia
  Ireland | Europe
  England | Europe
  </pre>
  
  <ol>
  <li>User will select a country</li>
  <li>System should display all other countries which are in the same continent of the selected country 
  I want to use JOINS only (not subqueries).  Is there a way to get?</li>
  </ol>