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Encyclopedia of Database Systems pp 1372–1373Cite as

Event in Temporal Databases

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Synonyms

Event relation; Instant relation

Definition

An event is an instantaneous fact, i.e., something occurring at an instant of time.

Key Points

Some temporal data models support valid-time relations where tuples represent events and where the tuples are thus timestamped with time values that represent time instants. When granules are used as timestamps, an event timestamped with granule t occurs, or is valid, at some instant during t.

It may be observed that more general kinds of events have also been considered in the literature, including events with duration and complex and composite events.

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Recommended Reading

  1. Bettini C, Dyreson CE, Evans WS, Snodgrass RT, Wang XS. A glossary of time granularity concepts. In: Etzion O, Jajodia S, Sripada S, editors. Temporal databases: research and practice. LNCS 1399. Berlin/Heidelberg/New York: Springer; 1998. p. 406–13.

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  2. Events. The Internet encyclopedia of philosophy. Available at: http://www.iep.utm.edu/e/events.htm

  3. Jensen CS, Dyreson CE. A consensus glossary of temporal database concepts – February 1998 version. In: Etzion O, Jajodia S, Sripada S, editors. Temporal databases: research and practice. LNCS 1399. Berlin/Heidelberg/New York: Springer; 1998. p. 367–405.

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Author information

Authors and Affiliations

  1. Department of Computer Science, University of Arizona, Tucson, AZ, USA

    Richard T. Snodgrass

  2. Dataware Ventures, Tucson, AZ, USA

    Richard T. Snodgrass

Authors
  1. Richard T. Snodgrass
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Corresponding author

Correspondence to Richard T. Snodgrass .

Editor information

Editors and Affiliations

  1. Georgia Institute of Technology College of Computing, Atlanta, GA, USA

    Ling Liu

  2. University of Waterloo School of Computer Science, Waterloo, ON, Canada

    M. Tamer Özsu

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Snodgrass, R.T. (2018). Event in Temporal Databases. In: Liu, L., Özsu, M.T. (eds) Encyclopedia of Database Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8265-9_1413

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