Mapping-equivalence and oid-equivalence of single-function object-creating conjunctive queries

@article{Bonifati2016MappingequivalenceAO,
  title={Mapping-equivalence and oid-equivalence of single-function object-creating conjunctive queries},
  author={A. Bonifati and W. Nutt and Riccardo Torlone and J. Bussche},
  journal={The VLDB Journal},
  year={2016},
  volume={25},
  pages={381-397}
}
  • A. Bonifati, W. Nutt, +1 author J. Bussche
  • Published 2016
  • Computer Science
  • The VLDB Journal
  • Conjunctive database queries have been extended with a mechanism for object creation to capture important applications such as data exchange, data integration, and ontology-based data access. Object creation generates new object identifiers in the result that do not belong to the set of constants in the source database. The new object identifiers can be also seen as Skolem terms. Hence, object-creating conjunctive queries can also be regarded as restricted second-order tuple-generating… CONTINUE READING
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