title: Querying total row size in KBs for SQL Server DB based on date
body: <p>I've searched for this up and down, but I can't find how to query for a set of rows.</p>
  
  <p>When I query the DB for the rows themselves, that's simple enough.</p>
  
  <pre><code>SELECT *
  FROM dbo.[tablename]
  WHERE CreatedDate &lt; '2012-12-31-00:00:00'
  </code></pre>
  
  <p>But I'm not sure how to apply something like sp_spaceused to this.</p>