• DOI:10.1007/3-540-36285-1_14
Corpus ID: 11863817

Data exchange: semantics and query answering

@article{Fagin2005DataES,
  title={Data exchange: semantics and query answering},
  author={Ronald Fagin and Phokion G. Kolaitis and R. Miller and L. Popa},
  journal={Theor. Comput. Sci.},
  year={2005},
  volume={336},
  pages={89-124}
}

Ronald Fagin, Phokion G. Kolaitis, +1 author L. Popa

Published 2005

Computer Science

Theor. Comput. Sci.

Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema that reflects the source data as accurately as possible. In this paper, we address foundational and algorithmic issues related to the semantics of data exchange and to query answering in the context of data exchange. These issues arise because, given a source instance, there may be many target instances that satisfy the constraints of the data exchange problem. We give an… CONTINUE READING

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