See O-R mapping and object database. There are three major features in object-oriented programming that makes them different than non-OOP languages: encapsulation, inheritance and polymorphism.

What is an object-oriented Database? An object oriented database manages objects, like the ones used in object oriented programming ... computer applications. For example, you might use objects ...

An introduction to the principles of object-oriented programming. It covers both object-oriented programming techniques and their application to program design including classes, objects and objects ...