How to sync android phones to a database in the same network?
<p>I want to create an app for android phones and I'd like to know if is it possible or how it should be done this:</p>

<p>In a wifi area with a pc that acts as server, the android phones with this app (connected to the same ap) should be capable to access to a database that reside on the pc (previously having done an authentication). And then, get all the information needed from the database.  </p>

<p>Rather than being continuously asking for requests to the server, it could download and make a copy to the phone just everytime the application starts and log in to the server (this db to copy should not be much large).  </p>

<p>As well, the phones could send messages to the server and get responses based on the requests asked.</p>

<p>What should be done on the server side? what database or databases should fit better for each case?, what protocol is the best for this job...</p>

<p>I'm totally noob on this and i need all the help you can give.</p>
