Mork, Peter and Shaker, R. and Halevy, A. and Tarczy-Hornoch, Peter (2002) PQL: A Declarative Query Language over Dynamic Biological Schemata. In: American Medical Informatics Association Fall Symposium. pp. 533-537.
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Abstract
We introduce the PQL query language (PQL) used in the GeneSeek genetic data integration project. PQL incorporates many features of query languages for semi-structured data. To this we add the ability to express metadata constraints like intended semantics and database curation approach. These constraints guide the dynamic generation of potential query plans. This allows a single query to remain relevant even in the presence of source and mediated schemas that are continually evolving, as is often the case in data integration.
Item Type: | Book Section |
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Uncontrolled Keywords: | amia2002 |
Subjects: | All Projects > OQAFMA |
Depositing User: | Jim Brinkley |
Date Deposited: | 22 May 2003 |
Last Modified: | 19 Jul 2017 03:45 |
URI: | http://sigpubs.si.washington.edu/id/eprint/125 |
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