title: Android Realm find first N element
body: <p>How I can select first N element from Realm database. 
  Now,I use this code to select N elements:</p>
  
  <pre><code>Realm.getDefaultInstance()
  .where(MyObject.class)
  .findAllSorted("myField", Sort.DESCENDING)
  </code></pre>
  
  <p>But this select operation is too long. I need to SQL 'LIMIT' operation analog.</p>