Design of RapidBase - An Active Measurement Database System
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by  Antoni Wolski, Jorma Kuha, Tapio Luukkanen, Antti Pesonen

Proc. Internat. Database Engineering and Applications Symposium
(IDEAS 2000), September 18-20, 2000, Yokohama, Japan, 
IEEE Computer Society Press, 2000.

Abstract

In data-intensive industrial on-line applications utilizing live 
process data, one faces an unusual set of database requirements. 
The process measurement data need to be acquired at great speed, 
organized in time series and made available for time-based retrieval. 
Active capabilities and functional extensi-bility are needed 
to implement a flexible data-driven processing paradigm. An efficient 
transaction logging and recovery mechanism is needed in order not to 
impede the data acqui-sition flow. RapidBase is a system that meets 
these requirements. It util-izes a main-memory database, a unique 
temporal-relational data model for handling time series, and 
an elaborate trigger subsystem. It is imple-mented as a server 
program equipped with inter-faces of high power of expression.