article

Reasoning about keys for XML

Authors:

Susan Davidson,

Wang-Chiew TanAuthors Info & Claims

Information Systems, Volume 28, Issue 8

Pages 1037 - 1063

https://doi.org/10.1016/S0306-4379(03)00028-0

Published: 01 December 2003 Publication History

Abstract

We study absolute and relative keys for XML, and investigate their associated decision problems. We argue that these keys are important to many forms of hierarchically structured data including XML documents. In contrast to other proposals of keys for XML, we show that these keys are always (finitely) satisfiable, and their (finite) implication problem is finitely axiomatizable. Furthermore, we provide a polynomial time algorithm for determining (finite) implication in the size of keys. Our results also demonstrate, among other things, that the analysis of XML keys is far more intricate than its relational counterpart.

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Cited By

Angles RBonifati ADumbrava SFletcher GHare KHidders JLee VLi BLibkin LMartens WMurlak FPerryman JSavković OSchmidt MSequeda JStaworko STomaszuk DLi GLi ZIdreos SSrivastava D(2021)PG-Keys: Keys for Property GraphsProceedings of the 2021 International Conference on Management of Data10.1145/3448016.3457561(2423-2436)Online publication date: 9-Jun-2021
https://dl.acm.org/doi/10.1145/3448016.3457561
Fan WLu P(2019)Dependencies for GraphsACM Transactions on Database Systems10.1145/328728544:2(1-40)Online publication date: 13-Feb-2019
https://dl.acm.org/doi/10.1145/3287285
Niewerth MSchwentick T(2018)Reasoning About XML Constraints Based on XML-to-Relational MappingsTheory of Computing Systems10.1007/s00224-018-9846-562:8(1826-1879)Online publication date: 1-Nov-2018
https://dl.acm.org/doi/10.1007/s00224-018-9846-5
Show More Cited By

Index Terms

Reasoning about keys for XML
1. Applied computing
  1. Document management and text processing
    1. Document preparation
      1. Markup languages
2. Information systems
  1. World Wide Web

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Published In

cover image Information Systems

Information Systems Volume 28, Issue 8

December 2003

177 pages

ISSN:0306-4379

Issue’s Table of Contents

Publisher

Elsevier Science Ltd.

United Kingdom

Publication History

Published: 01 December 2003

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Cited By

Angles RBonifati ADumbrava SFletcher GHare KHidders JLee VLi BLibkin LMartens WMurlak FPerryman JSavković OSchmidt MSequeda JStaworko STomaszuk DLi GLi ZIdreos SSrivastava D(2021)PG-Keys: Keys for Property GraphsProceedings of the 2021 International Conference on Management of Data10.1145/3448016.3457561(2423-2436)Online publication date: 9-Jun-2021
https://dl.acm.org/doi/10.1145/3448016.3457561
Fan WLu P(2019)Dependencies for GraphsACM Transactions on Database Systems10.1145/328728544:2(1-40)Online publication date: 13-Feb-2019
https://dl.acm.org/doi/10.1145/3287285
Niewerth MSchwentick T(2018)Reasoning About XML Constraints Based on XML-to-Relational MappingsTheory of Computing Systems10.1007/s00224-018-9846-562:8(1826-1879)Online publication date: 1-Nov-2018
https://dl.acm.org/doi/10.1007/s00224-018-9846-5
Vidaković JRistić SKordić SLuković IZdravkova KEleftherakis GKefalas P(2017)Extended Tuple Constraint Type in Relational and XML Data ModelProceedings of the 8th Balkan Conference in Informatics10.1145/3136273.3136294(1-8)Online publication date: 20-Sep-2017
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jia Lhusheng LDesai BToyama MBernardino J(2016)XML Type Dependency and XML Type Normal FormProceedings of the 20th International Database Engineering & Applications Symposium10.1145/2938503.2938536(272-277)Online publication date: 11-Jul-2016
https://dl.acm.org/doi/10.1145/2938503.2938536
Vidaković JLuković IKordić SBădică CManolopoulos YCoşulschi MEleftherakis GLeon F(2015)Specification and Implementation of the Inverse Referential Integrity Constraint in XML DatabasesProceedings of the 7th Balkan Conference on Informatics Conference10.1145/2801081.2801111(1-8)Online publication date: 2-Sep-2015
https://dl.acm.org/doi/10.1145/2801081.2801111
Szabó GBenczúr A(2015)Functional dependencies on extended relations defined by regular languagesAnnals of Mathematics and Artificial Intelligence10.1007/s10472-013-9352-z73:1-2(205-243)Online publication date: 1-Jan-2015
https://dl.acm.org/doi/10.1007/s10472-013-9352-z
Abedjan ZGolab LNaumann F(2015)Profiling relational dataThe VLDB Journal — The International Journal on Very Large Data Bases10.1007/s00778-015-0389-y24:4(557-581)Online publication date: 1-Aug-2015
https://dl.acm.org/doi/10.1007/s00778-015-0389-y
Arenas MDaenen JNeven FUgarte MBussche JVansummeren S(2014)Discovering XSD Keys from XML DataACM Transactions on Database Systems10.1145/263854739:4(1-49)Online publication date: 30-Dec-2014
https://dl.acm.org/doi/10.1145/2638547
Mlýnková INečaský M(2013)Heuristic Methods for Inference of XML SchemasInformatica10.5555/2699244.269924924:4(577-602)Online publication date: 1-Oct-2013
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