Publikation:

Query Translation Supporting the Migration of Legacy Databases into Cooperative Information Systems

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1994

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Kriegel, Hans-Peter
Miethsam, Andreas

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Published

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Proceedings of the Second International Conference on Cooperative Information Systems, May 17 - 20, 1994, Toronto, Canada. 1994, pp. 203-214

Zusammenfassung

In this paper, we present a query translation algorithm which allows object-oriented queries to be automatically translated into a relational query language. Our goal is to provide a unique and powerful query interface supporting the cooperation of information systems, particularly under the aspect of migrating existing systems without changes into the cooperation. Translation algorithms, like the one proposed in this paper are essential parts of CISs to mediate between the common global query language and the query languages of participating components. Our query translation algorithm ensures a fully automatic translation of object-oriented queries into equivalent SQL queries for the original relational schema in all cases where a direct translation is possible. In all other cases, it generates SQL queries providing a superset of the desired data and a sequence of formatting functions that transform the data into the desired result.

Zusammenfassung in einer weiteren Sprache

Fachgebiet (DDC)
004 Informatik

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Cooperative Information Systems, 17. Mai 1994 - 20. Mai 1994, Toronto, Canada
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ISO 690KEIM, Daniel A., Hans-Peter KRIEGEL, Andreas MIETHSAM, 1994. Query Translation Supporting the Migration of Legacy Databases into Cooperative Information Systems. Cooperative Information Systems. Toronto, Canada, 17. Mai 1994 - 20. Mai 1994. In: Proceedings of the Second International Conference on Cooperative Information Systems, May 17 - 20, 1994, Toronto, Canada. 1994, pp. 203-214
BibTex
@inproceedings{Keim1994Query-5892,
  year={1994},
  title={Query Translation Supporting the Migration of Legacy Databases into Cooperative Information Systems},
  booktitle={Proceedings of the Second International Conference on Cooperative Information Systems, May 17 - 20, 1994, Toronto, Canada},
  pages={203--214},
  author={Keim, Daniel A. and Kriegel, Hans-Peter and Miethsam, Andreas}
}
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