title: Select data from many tables at the same time order by date (stream)
body: <p>I want to get data from many tables with an order by created_at to make a stream.</p>
  
  <p>Tables:</p>
  
  <p>news, reviews, videos, games</p>
  
  <p>These all tables has created_at field.</p>
  
  <p>These data must be in an order with created_at.</p>
  
  <p>How can i do with mysql?</p>