Intelligent 0 b jec t -0rien ted Features in Distributed Data bases

Specialization and generalization are complementary concepts of inheritance. This paper illustrates the use of these concepts in Intelligent SQL to model complex real-world relationships, as well as to present a global view of data, through bottom-up integration of existing, heterogeneous SQL databases. Intelligent SQL is the access language for an intelligent database engine under development at Ashton-Tate,