Ping DB setiap detik bukanlah cara yang ideal untuk melakukan ini; Anda dapat menerapkan kombinasi pemicu DB dan soket web/pemberitahuan push HTML5:http://html5hacks.com/blog/2013/04/21/Push-notifications-to-the-browser-with-server-sent-events/
http://www.abrandao.com/2013/06/25/websockets-using-modern-html5-technology-for-true-server-push/
http://pusher.com/tutorials/html5_realtime_push_notifications
