Title :
Object-oriented query languages: the notion and the issues
Author :
Bertino, Elisa ; Negri, Mauro ; Pelagatti, Giuseppe ; Sbattella, Licia
Author_Institution :
Dipartimento di Matematica, Genova Univ., Italy
fDate :
6/1/1992 12:00:00 AM
Abstract :
The authors describe how the characteristics of an object-oriented data model, such as object identity, complex object structure, methods, and class hierarchies, have an impact on the design of a query language. They also point out major differences with respect to relational query languages. The discussion is supported through the definition of OOPC, a formal object-oriented query language based on predicate calculus, which incorporates in a consistent formal notation most features of existing object-oriented query languages
Keywords :
object-oriented databases; query languages; OOPC; class hierarchies; complex object structure; formal notation; object identity; predicate calculus; Calculus; Data models; Database languages; Engineering management; Knowledge management; Navigation; Object oriented databases; Object oriented modeling; Proposals; Relational databases;
Journal_Title :
Knowledge and Data Engineering, IEEE Transactions on
