title: Recursive query
body: <p>I have a table which contains the following fields</p>
  
  <ul>
  <li>Supervisorid </li>
  <li>Empid </li>
  </ul>
  
  <p>This is just like a referral program. A guy can refer 3 guys under him i.e, 3 is referring three guys namely 4 5 8 similarly 4 is referring 9 10 and 11 likewise 8 is referring 12, 13 it goes like this..</p>
  
  <p>I want a query to get all EmpId under Supervisor 3</p>