title: Include Start Date and the End Date in DateDiff function
body: <p>I'm looking to get total number of days including the Start Date and End Date, some examples below:</p>
  
  <pre><code>Start Date  End Date     Tot#Days
  08-04-2014  08-04-2014   1
  08-04-2014  08-05-2014   2
  08-04-2014  08-07-2014   4
  </code></pre>
  
  <p>I tried using the DATEDIFF function however I get a 0 for the first example, 1 for second example and 3 for the third which is not what I'm after.</p>