DocumentCode
1400803
Title
The role of polymorphism in schema evolution in an object-oriented database
Author
Osborn, Sylvia L.
Author_Institution
Dept. of Comput. Sci., Univ. of Western Ontario, London, Ont., Canada
Volume
1
Issue
3
fYear
1989
fDate
9/1/1989 12:00:00 AM
Firstpage
310
Lastpage
317
Abstract
A polymorphic object algebra for an object-oriented database model is introduced. Types of schema modification that follow naturally from this model are described. It is shown to what extent queries return identical or equivalent results when the objects in the database are modified to conform to a modified schema
Keywords
database management systems; database theory; object-oriented programming; model; object-oriented database; polymorphic object algebra; polymorphism; schema evolution; Aggregates; Algebra; Data models; Database languages; Database systems; Indexes; Object oriented databases; Object oriented modeling; Object oriented programming; Relational databases;
fLanguage
English
Journal_Title
Knowledge and Data Engineering, IEEE Transactions on
Publisher
ieee
ISSN
1041-4347
Type
jour
DOI
10.1109/69.87977
Filename
87977
Link To Document