History Update in Temporal Object-Oriented Databases

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概要

• 論文の詳細を見る

• Advanced database applications, e.g. CAD and OIS, have two requirements. First, they need semantically rich data model, since record oriented data models are not able to support these applications. Object-oriented data model is promising to be used in such applications. The second requirement is extending and adding some new features to database management systems. Among these features are support of long transactions, controlling versions, and adding the time dimension to the data. In this paper, we discuss problems in updating the history in temporal object-oriented databases (TOODE).(Detailed discussions of some problems in answering queries in TOODB's can be found in .)In object-oriented databases an update on an object may enforce it to change its class .That is the object will migrate to another class. Due to object migration updating the history of an object may affect the position of the current version of the object (it may also affect other versions).Accordingly, when the history of an object is updated, the system has to check whether this update will affect one of the object's versions.

• 一般社団法人情報処理学会の論文
• 1991-02-25

著者

• Kambayashi Yahiko

  Faculty Of Engineering Kyoto University

• El-sharkawi Mohamed

  Faculty Of Engineering Kyushu University

• Kambayashi Yahiko

  Faculty of Engineering,KYOTO UNIVERSITY

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• History Update in Temporal Object-Oriented Databases

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