title: Getting Number of weeks in a Month from a Datetime Column
body: <p>I have a table called FcData and the data looks like:</p>
  
  <pre><code>Op_Date
  
  2011-02-14 11:53:40.000
  2011-02-17 16:02:19.000
  2010-02-14 12:53:40.000
  2010-02-17 14:02:19.000
  </code></pre>
  
  <p>I am looking to get the Number of weeks in That Month from Op_Date. So I am looking for output like:</p>
  
  <pre><code> Op_Date                       Number of Weeks
  
      2011-02-14 11:53:40.000       5   
      2011-02-17 16:02:19.000       5
      2010-02-14 12:53:40.000       5
      2010-02-17 14:02:19.000       5
  </code></pre>