XPath 2.0 is an expression language that allows the processing of values conforming to the data model defined in [XQuery 1.0 and XPath 2.0 Data Model (Second Edition)]. The data model provides a tree representation of XML documents as well as atomic values such as integers, strings, and booleans, and sequences that may contain both references to nodes in an XML document and atomic values. The result of an XPath expression may be a selection of nodes from the input documents, or an atomic value, or more generally, any sequence allowed by the data model. The name of the language derives from its most distinctive feature, the path expression, which provides a means of hierarchic addressing of the nodes in an XML tree. XPath 2.0 is a superset of [XPath 1.0], with the added capability to support a richer set of data types, and to take advantage of the type information that becomes available when documents are validated using XML Schema. A backwards compatibility mode is provided to ensure that nearly all XPath 1.0 expressions continue to deliver the same result with XPath 2.0; exceptions to this policy are noted in [I Backwards Compatibility with XPath 1.0].

References in zbMATH (referenced in 350 articles , 1 standard article )

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  1. Björklund, Henrik; Martens, Wim; Schwentick, Thomas: Conjunctive query containment over trees using schema information (2018)
  2. Kostylev, Egor V.; Reutter, Juan L.; Vrgoč, Domagoj: Containment of queries for graphs with data (2018)
  3. Abriola, Sergio; Descotte, María Emilia; Fervari, Raul; Figueira, Santiago: Axiomatizations for downward XPath on data trees (2017)
  4. Abriola, Sergio; Descotte, María Emilia; Figueira, Santiago: Model theory of XPath on data trees. II: Binary bisimulation and definability (2017)
  5. Boiret, Adrien; Hugot, Vincent; Niehren, Joachim; Treinen, Ralf: Automata for unordered trees (2017)
  6. Gottlob, Georg; Koch, Christoph; Pieris, Andreas: Logic, languages, and rules for web data extraction and reasoning over data (2017)
  7. Julián-Iranzo, Pascual; Moreno, Ginés; Penabad, Jaime: Thresholded semantic framework for a fully integrated fuzzy logic language (2017)
  8. Okhotin, Alexander; Salomaa, Kai: State complexity of operations on input-driven pushdown automata (2017)
  9. Reutter, Juan L.; Romero, Miguel; Vardi, Moshe Y.: Regular queries on graph databases (2017)
  10. Reutter, Juan L.; Vrgoč, Domagoj: Navigational and rule-based languages for graph databases (2017)
  11. Santtu Tikka and Juha Karvanen: Identifying Causal Effects with the R Package causaleffect (2017)
  12. Alur, Rajeev; Fisman, Dana; Raghothaman, Mukund: Regular programming for quantitative properties of data streams (2016)
  13. Areces, Carlos; Fervari, Raul: Hilbert-style axiomatization for hybrid XPath with data (2016)
  14. Barceló, Pablo; Romero, Miguel; Vardi, Moshe Y.: Semantic acyclicity on graph databases (2016)
  15. Bárcenas, Everardo; Benítez-Guerrero, Edgard; Lavalle, Jesús: On regular paths with counting and data tests (2016)
  16. Benedikt, Michael; Ley, Clemens: Limiting Until in ordered tree query languages (2016)
  17. Fionda, Valeria; Gutierrez, Claudio; Pirrò, Giuseppe: Building knowledge maps of web graphs (2016)
  18. Fletcher, George H.L.; Gyssens, Marc; Paredaens, Jan; Van Gucht, Dirk; Wu, Yuqing: Structural characterizations of the navigational expressiveness of relation algebras on a tree (2016)
  19. Grandi, Fabio: Dynamic class hierarchy management for multi-version ontology-based personalization (2016)
  20. Holzschuher, Florian; Peinl, René: Querying a graph database -- language selection and performance considerations (2016)

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