title: Sql Lite Primary key for Application
body: <p>Hi can anyone one suggest me a primary key(type:long) implementation which is for each installed android application. 
  This will help me much.
  Checked below link. But it will return type string.
  <a href="http://android-developers.blogspot.co.uk/2011/03/identifying-app-installations.html" rel="nofollow">Identifying-app-installations</a></p>
  
  <p>Thanks in advance.</p>