RWTH Aachen University
The semantics of a new language (CUDL - Conceptual Universal Database Language), designed to manage dynamic database environments, are presented. This language conforms to the FDB (Frame DataBase) data model. The FDB model supports conceptual database record processing using a universal schema that eliminates completely the need for reorganization at logical and internal levels when changes in a database application occur. The CUDL language offers a focused, flexible, efficient and highly expressive environment that also takes advantage of the FDB's characteristics of a continuously evolving database.