The Language and the Data Model. The Language and the Data Model. Abstract ODE is a database system and environment based on the object paradigm. It offers one integrated data model for both database and general purpose manipulation.
Classes support data encapsulation and multiple inheritance.
We provide facilities for creating persistent and versioned objects, defining sets, and iterating over sets and clusters of persistent objects. We also provide facilities to associate constraints and triggers with objects. Permission to make digital or hard copies is granted provided that copies are not made or distributed for profit or direct commercial advantage, and that copies show this notice on the first page or initial screen of a display along with the full citation. An Extension of Relational Algebra to Express a Class of Recursive Queries. A Strongly-Typed, Interactive Conceptual Language.