1996
Object Histories as a Foundation for an Active OODB
Publication
Publication
Several links exist between active and temporal databases. These are summarised by the observation that rules are triggered by a specified evolution of the database. In this paper, we discuss the relation between active and temporal database using DEGAS, an object-based active database programming language. To achieve full active database functionality, a DEGAS object records its complete history. Hence, all data needed for a temporal database supporting a single temporal dimension is provided. Furthermore, the semantics of the active behaviour of DEGAS are defined straightforwardly in terms of the object history. Finally, we discuss the advantages and disadvantages of extending DEGAS with a second time dimension (to achieve full temporal functionality) from an active database perspective.
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| IEEE Computer Society Press | |
| International Workshop on Database and Expert Systems Application | |
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van den Akker, J., & Siebes, A. (1996). Object Histories as a Foundation for an Active OODB. In Proceedings of International Workshop on Database and Expert Systems Application 1996 (7) (pp. 2–8). IEEE Computer Society Press. |
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