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Structured Data in Peer-to-Peer Systems

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Encyclopedia of Database Systems

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Synonyms

Peer data management; Peer database management; P2P database

Definition

A peer database management system is a peer-to-peer (P2P) system that manages structured data. Each node in such a system maintains data which conforms to user- or application-defined structures and can be accessed and retrieved efficiently. Examples of data structures are relations as set of tuples and hierarchical or tree-organized data such as XML data and documents. In contrast to unstructured data (e.g., text and binary objects) structured data can be retrieved by specifying logical conditions and further processed by operations such as set operations, aggregations and joins.

Historical Background

One of the origins of coordinator-free distributed data management were scalable distributed data structures (SDDS). One of these approaches called LH* [7] is an extension of linear hashing to distributed nodes, and supports key search as well as parallel operations like hash joins and scans.

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Recommended Reading

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Author information

Authors and Affiliations

  1. Technische Universität Ilmenau, Ilmenau, Germany

    Kai-Uwe Sattler

Authors
  1. Kai-Uwe Sattler
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Corresponding author

Correspondence to Kai-Uwe Sattler .

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. Distributed Inf. Sys Lab., Inst. for Core Computing Science (IIF), EPFL-IC-IIF-LSIR, Lausanne, Switzerland

    Karl Aberer

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Sattler, KU. (2018). Structured Data in Peer-to-Peer Systems. 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_1219

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