how to database

i thinking about to make something like database for all my game object(mobs)
The game with multiplayer and different players going to use different objects(mobs)
better, if i send and recieve all the types of objects by numbers from db before match start to instantiate lately.
So i ask you to direct me where can i read about db for unity3d.
Thx
also i intend to publish on android , ios, windows

Here’s a paper on setting up a MySQL server and connecting to it from Unity: http://forum.unity3d.com/attachments/unity-and-mysql-pdf.14013/