title: SQL Join Need to display Grandfather and Grandson name containg from the family table
body: <p>A table named 'Family' containing only two column 'Father' and 'Son' and contain below values respectively.</p>
  
  <pre><code>Father | Son  
   A     | B  
   B     | C  
   C     | D  
   D     | E
  </code></pre>
  
  <hr>
  
  <p>using join display 'GrandFather' and 'GrandSon' relationship. i.e,</p>
  
  <pre><code>GrandFather | GrandSon  
  A           | C  
  B           | D  
  C           | E
  </code></pre>