Encyclopedia of Database Systems

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

Calendric System

  • Curtis E. Dyreson
  • Christian S. Jensen
  • Richard T. Snodgrass
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_1412

Definition

A calendric system is a collection of calendars. The calendars in a calendric system are defined over contiguous and non-overlapping intervals of an underlying time-line. Calendric systems define the human interpretation of time for a particular locale as different calendars may be employed during different intervals.

Key Points

A calendric system is the abstraction of time available at the conceptual and logical (query language) levels. As an example, a Russian calendric system could be constructed by considering the sequence of six different calendars used in that region of the world. In prehistoric epochs, the Geologic calendar and Carbon-14 dating (another form of calendar) are used to measure time. Later, during the Roman empire, the lunar calendar developed by the Roman republic was used. Pope Julius, in the first century b.c., introduced a solar calendar, the Julian calendar. This calendar was in use until the 1917 Bolshevik revolution when the Gregorian calendar,...

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Recommended Reading

  1. 1.
    Jensen CS, Dyreson CE, editors. Böhlen M, Clifford J, Elmasri R, Gadia SK, Grandi F, Hayes P, Jajodia S, Käfer W, Kline N, Lorentzos N, Mitsopoulos Y, Montanari A, Nonen D, Peressi E, Pernici B, Roddick JF, Sarda NL, Scalas MR, Segev A, Snodgrass RT, Soo MD, Tansel A, Tiberio R, Wiederhold G. A consensus glossary of temporal database concepts – February 1998 version. In: Etzion O, Jajodia S, Sripada S. editors. Temporal databases: research and practice. LNCS, vol. 1399. Berlin: Springer; 1998, p. 367–405.Google Scholar

Copyright information

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

Authors and Affiliations

  • Curtis E. Dyreson
    • 1
  • Christian S. Jensen
    • 2
  • Richard T. Snodgrass
    • 3
    • 4
  1. 1.Utah State UniversityLoganUSA
  2. 2.Department of Computer ScienceAalborg UniversityAalborgDenmark
  3. 3.Department of Computer ScienceUniversity of ArizonaTucsonUSA
  4. 4.Dataware VenturesTucsonUSA

Section editors and affiliations

  • Richard T. Snodgrass
    • 1
  • Christian S. Jensen
    • 2
  1. 1.University of ArizonaTucsonUSA
  2. 2.Aalborg UniversityAalborg ØstDenmark