title: sql query calculating no of employees joined each financial year i.e from 1-04-2002 to 31-03-2003
body: <p>I have a table in which joining dates are give in datetime format.
  I have to calculate how many employees joined each financial year resp. ie for eg  from 
  1-04-2002 to 31-03-2003.this should work for each year..from 2003 to 2004,2004 to 2005...n so on.</p>
  
  <p>can anybdy help?
  thanxx.</p>