Android apps connect with database server

Using JDBC?:

In the words of Commonsware:

Never never never use a database driver across an Internet connection, for any database, for any platform, for any client, anywhere. That goes double for mobile. Database drivers are designed for LAN operations and are not designed for flaky/intermittent connections or high latency.

On the client side (Android app), you can use SQLite to store data locally. It might not be necessary at all actually. For instance, it can be used for offline features, search, etc. For client-side, read up on this simple post

On the server side (whatever server side technology you know or want to learn), you can use whatever language, whatever database on whatever server OS you want. This part is commonly called the back-end, which will store your data while your app communicate with it through HTTP.

You can use json to parse data between server and the android device. In the server you can use jdbc with json if you are using servlets in the server.

To communicate between a server and an android device you can use JASON. See following links for some help.

http://www.androidhive.info/2012/01/android-json-parsing-tutorial/

https://www.learn2crack.com/2013/10/android-asynctask-json-parsing-example.html

https://www.learn2crack.com/2013/10/android-json-parsing-url-example.html

Also in the device to deal with data within the device you can use SQLite. And in the server you can use jdbc if you are using servelets.

To communicate with Database server You should use web service API such REST , soap