title: Effective SQL Query to find a given month is in between two dates
body: <p>I have two dates in my subscription table (<code>start_date</code> and <code>end_date</code>). I want to find out if the user is subscribed in the specified month or not? For ex: <code>start_date=11/20/2011 and end_date=03/10/2012</code>. I want to know all users who are subscribed in the month of <code>Feb-2012 (02/2012)</code>.</p>
  
  <p>Thank you.</p>