title: SELECT rows with time 30 minutes or less?
body: <p>I have found ways on google to select rows within X amount of days, but I have a <code>datetime</code> column in my SQL Server 2008 table and would like to get the rows that have a <code>datetime</code> within the last 30 minutes.</p>
  
  <p>Can anyone show me how to do this?</p>
  
  <p>Thanks.</p>