Schema Design, Views and Incomplete Information in Object-Oriented Databases

概要

論文の詳細を見る
"Object-oriented computing" is one of the most active research fields in computer science, and this notion has become an important paradigm in the areas of programming languages, artificial intelligence and databases. In the area of databases, although the relational approach achieved a great success, the weakness of this model has been also pointed out as the database application area extends to CAD / CAM application and software version control etc. As an alternative candidate of the relational approach, much attention has been focussed on "object-oriented database (abbreviated by OODB)", and the OODBs have been investigated by several researchers. However, the study of the OODB has just begun, and there are few investigations about the database schema design in the OODB. In this paper, we show fundamental ideas and methods to achieve schema design, update propagation, view implementation and the treatment of incomplete information in the OODB. Especially, we show some methods written in Smalltalk-80 to perform these and also discuss the weakness of Smalltalk-80from the viewpoint of the OODB.
一般社団法人情報処理学会の論文
1989-12-25