Combining the functional and the relational model
A.T.M. Aerts, Paul M. E. De Bra, Kees M. van Hee · TU/e Research Portal · 1990
Tlus paper combines the expressive power of the Functional and the Relational Model.Willie the Functional Data Model is a powerful and intuitive tool for translating a real-world situation into a data model, the Relational Model has been studied much more extensively, resulting in a thorough knowledge of the properties of constraints, and the expressive power of query and update languages.Given the existence of a Relational Representation Scheme for every Functional Structure Scheme we can combine a data language for the relational model with that of the Functional Model to obtain a richer data language for the combined Functional and Relational Data Model.In tlus paper we present a fiI'St order language wluch operates on the combined Functional and Relational scheme.In this (formal) language one can easily formulate constraints, queries and updates, mixing functional and relational constructs.