Encyclopedia of Database Systems

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

Schema Mapping

  • Ariel Fuxman
  • Renée J. Miller
Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-8265-9_964

Synonyms

Mapping

Definition

The problem of establishing associations between data structured under different schemas is at the core of many data integration and data sharing tasks. Schema mappings establish semantic connections between schemas. Given a source schema S and a target schema T, a schema mapping is a specification of a relation between instances of S and instances of T. Given an instance of the source I and an instance of the target J that satisfy the mapping, say that \( \left.\left(I,J\right)\right|=\boldsymbol{\mathcal{M}} \)

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Copyright information

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

Authors and Affiliations

  1. 1.Microsoft ResearchMountain ViewUSA
  2. 2.Department of Computer ScienceUniversity of TorontoTorontoCanada

Section editors and affiliations

  • Renée J. Miller
    • 1
  1. 1.Dept. of Computer ScienceUniversity of Toronto, Department of Computer ScienceTorontoCanada