title: MySql - Order by date and then by time
body: <p>I have a table with 2 'datetime' fields: 'eventDate' and 'eventHour'. I'm trying to order by 'eventDate' and then by 'eventHour'.</p>
  
  <p>For each date I will have a list os events, so that's why I will to order by date and then by time.</p>
  
  <p>thanks!!</p>