Need basic Database app code sample

I need a very simple Unity 3d game where:

- Many steps appear in flowchart fashion
- On each tap, next flowchart step appears on the screen
- Step text is fetched from a lightweight DB.

I know this is very simple and basic.
But as I am beginner I find it harder to learn every aspect of all the above and reinvent the wheel.
At the same time, since this is basic, I do not want to hire someone just for this.

If someone knows really good online example that can do the above, please help!
Thank you for your time!
-NB

 

Database details should never be coded into your actual app as it's very easy for people to de-code the Unity file and do damage to your database. I suggest you use a server side language such as PHP to generate your data, then fetch it with a WWW and parse.