title: MySQL table as a FIFO/Queue
body: <p>How can we treat a Mysql table as a limited FIFO buffer (Queue).</p>
  
  <p>Objectives are :</p>
  
  <ol>
  <li>The table at a time can have only N number of rows.</li>
  <li>When a row is inserted, the oldest row shpuld be deleted to maintain the row count as N.</li>
  </ol>
  
  <p>Pls suggest approaches.</p>
  
  <p><strong>UPDATE:</strong>
  Sorry guys, as many pointed I changed my question from STACK to FIFO queue</p>