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Encyclopedia of Database Systems pp 4035–4040Cite as

Temporal Strata

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Synonyms

Layered architecture; Temporal layer; Temporal middleware; Wrapper

Definition

A temporal stratum is an architecture for implementing a temporal DBMS. The stratum is a software layer that sits on top of an existing DBMS. The layer translates a query written in a temporal query language into one or more queries in a conventional query language (typically SQL). The translated queries can then be executed by the underlying DBMS. The DBMS returns the result of the query to the user directly or via the stratum. The core idea of the stratum is to provide new temporal query functionality to the users without changing the underlying DBMS. A temporal stratum can be implemented as a simple translator (temporal SQL to standard SQL) or as an advanced software component that also does part of the query processing and optimization. In the latter case, the temporal stratum can implement query processing algorithms that take the special nature of temporal data into consideration. Examples are...

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Recommended Reading

  1. Böhlen MH, Jensen CS, Snodgrass RT. Temporal statement modifiers. ACM Trans Database Syst. 2000;25(4):407–56.

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  6. Snodgrass RT. Developing time-oriented database applications in SQL. San Francisco: Morgan Kaufmann; 1999.

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  7. Torp K, Jensen CS, Snodgrass RT. Stratum approaches to temporal DBMS implementation. In: Proceedings of the International Conference Symposium on Database Engineering and Applications; 1998. p. 4–13.

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  8. IBM Corp. IBM DB2. ibm.com/software/data/db2, as of 28.6.2014

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Author information

Authors and Affiliations

  1. Aalborg University, Aalborg, Denmark

    Kristian Torp

Authors
  1. Kristian Torp
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Corresponding author

Correspondence to Kristian Torp .

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

Section Editor information

  1. University of Arizona, Tucson, AZ, USA

    Richard T. Snodgrass

  2. Aalborg University, Aalborg Øst, Denmark

    Christian S. Jensen

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Torp, K. (2018). Temporal Strata. 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_409

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