Numerous proposals for extending the relational data model to incorporate the temporaldimension of data have appeared in the past several years. These proposals have differedconsiderably in the way that the temporal dimension has been incorporated both into thestructure of the extended relations...

Numerous proposals for extending the relational data model to incorporate the temporaldimension of data have appeared over the past decade. It has long been known that theseproposals have adopted one of two basic approaches to the incorporation of time into theextended relational model. Recent...

Critical to the design of an historical database model is the representation of the Atilde;cent;Acirc;not;Acirc;SexistenceAtilde;cent;Acirc;not;Acirc;?of objects across the temporal dimension -- for example, the quot;birth,quot; quot;death,quot; or quot;rebirthquot; ofan individual, or the establishment...

Two recent lines of database research, proceeding independently, have beenconcerned with providing a richer, more intuitive view of information at the userlevel. Historical database research has focused on ways to provide users with aview of information anchored and evolving in the temporal...

Several proposals for extending the relational data model to incorporate thetemporal dimension of data have appeared in the past several years. Theseproposals have differed considerably in the way that the temporal dimensionhas been incorporated both into the structure of the extended relations...

More and more application domains, from financial market analysis to weatherprediction, from monitoring supermarket purchases to monitoring satellite images, arebecomingly increasingly data-intensive. The result is massive databases that are growingat a rapid rate - it has been estimated that...

We define a temporal algebra that is applicable to anytemporal relational data model supporting discrete linearbounded time. This algebra has the five basicrelational algebra operators extended to the temporaldomain and an operator of linear recursion. Weshow that this algebra has the expressive...