title: SSRS BIDS expression language Month Part from Current date
body: <p>In <code>BIDS</code> I need an <code>expression</code> to take the <strong>YEAR</strong> part of a date which is minus 1 month of the current date.</p>
  
  <p><strong>For example</strong> Today's date is <code>20/04/2012</code> the desired expression would return:</p>
  
  <p><strong><em>2012</em></strong></p>
  
  <p>If todays date was <code>05/01/2012</code> the desured expression would return:</p>
  
  <p><strong><em>2011</em></strong></p>