|Oracle Spatial User's Guide and Reference
Oracle Spatial supports two models for representing geometries: relational and object-relational. The two models are mutually exclusive. See Section 1.2 for a description of how to choose the model best suited for your application.
You do not need prior knowledge of the relational model to use the newer object-relational model.
This part of the User's Guide and Reference contains the following chapters that describe the object-relational model: