title: How to store user's profile picture in mysql
body: <p>I am developing a chat application for iOS.</p>
  
  <p>In this app, the users can set up an image as their profile picture.</p>
  
  <p>So my question is, how can i be able to store images in mysql ?</p>
  
  <p>I have seen that many people say, just store the link to the image(on device) in mysql, but how will the images be available on different iOS Devices, from a database right ?</p>
  
  <p>I have also tried using BLOB, but when the table rows are displayed(json encoded), the value for BLOB field comes out to be NULL.</p>
  
  <p>Please answer in brief.</p>
  
  <p>Thanks,</p>