title: SQL Subtract exactly a year
body: <p>First I want to thank everyone for helping me, It gave me a lot of ideas on how I should do this and I came up with my own method I just need help putting it into a query</p>
  <p>I want the user to input a date, then get the current year. subtract the two and then do the <code>dateadd</code> that everyone was posting. Is this possible and what is the best way to do it?</p>
  <pre><code>year(getdate())-@DYYYY=Y 
  dateadd(year,-Y,getdate())
  </code></pre>