title: Does it allow to create many transactions at a time in Android SQLite
body: <p>Reading <a href="http://developer.android.com/reference/android/database/sqlite/SQLiteDatabase.html" rel="nofollow">this document</a>, it says that SQLite supports transaction and nested transaction. I wonder that it is possible to create many different transactions.</p>
  
  <p>For example: I have 2 threads access to a database connection, is it posible to create  a transaction on each thread and they are not nested?</p>