Encyclopedia of Database Systems

2018 Edition
| Editors: Ling Liu, M. Tamer Özsu

Event in Temporal Databases

  • Richard T. Snodgrass
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_1413

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.

Cross-References

Recommended Reading

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

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Computer ScienceUniversity of ArizonaTucsonUSA
  2. 2.Dataware VenturesTucsonUSA