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@MISC{_,
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Abstract
Abstract Commercial relational database systems today provide only limited temporal support. To address theneeds of applications requiring rich temporal data and queries, we have built TIP (Temporal Information Processor), a temporal extension to the Informix database system based on its DataBlade technology.Our TIP DataBlade extends Informix with a rich set of datatypes and routines that facilitate temporal modeling and querying. TIP provides both C and Java libraries for client applications to access a TIP-enabled database, and provides end-users with a GUI interface for querying and browsing temporal data. 1 Introduction Our research in temporal data warehouses [9, 10] has led us to require a relational database system withfull SQL as well as rich temporal support, in order to experiment with our temporal view-maintenance techniques. Most commercial relational database systems support only a DATE type (or its variants). Anattribute of type DATE can be used to timestamp a tuple with a specific point in time (e.g., "this patient wastaking Prozac as of September 1, 1999"). But for general temporal modeling, a timestamp should be able to
Keyphrases
commercial relational database system support tip datablade informix database system type date temporal extension specific point client application relational database system withfull sql temporal data warehouse general temporal modeling gui interface java library temporal information processor rich temporal support rich temporal data temporal data tip-enabled database temporal view-maintenance technique datablade technology limited temporal support temporal modeling date type rich set
