title: How to implement lazy json file download?
body: <p>I'm using a web service that returns a JSON formated data from a database on my server, this data will be displayed in some view on my iPhone app.</p>
  
  <p>Since the app is free so I get thousands of rows on my DB and so of course in the JSON data I have to download.</p>
  
  <p>How can I do a lazy loading for my JSON data? please any code lines will be very appreciated.</p>
  
  <p>Thanks.</p>
  
  <p>EDIT 1 :</p>
  
  <p>in other words, I'm using an Sql request such as "select all from table", then returns this data as JSON to my app. </p>
  
  <p>How can I request a little number then add others etc .. ?</p>