title: How to fetch data from ydn-db with multiple conditions
body: <p>I am developing an web app. Therefore I use Sencha Touch 2 and for ydn db for local storage.</p>
  
  <p>My question is, how can I fetch data from ydn db by 2 or more conditions? For example username=Moo and street = Teststreet and lastname = 'xy'?</p>
  
  <p>Thanks for replies. :-)</p>