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View maintenance in a warehousing environment
Abstract
A warehouse is a repository of integrated information drawn from remote data sources. Since a warehouse effectively implements materialized views, we must maintain the views as the data sources are updated. This view maintenance problem differs from the traditional one in that the view definition and the base data are now decoupled. We show that this decoupling can result in anomalies if traditional algorithms are applied. We introduce a new algorithm, ECA (for Eager Compensating Algorithm), that eliminates the anomalies. ECA is based on previous incremental view maintenance algorithms, but extra compensating queries are used to eliminate anomalies. We also introduce two streamlined versions of ECA for special cases of views and updates, and we present an initial performance study that compares ECA to a view recomputation algorithm in terms of messages transmitted, data transferred, and I/O costs.
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Cited by
Why and Where: A Characterization of Data Provenance
Buneman, P., Khanna, S., & Wang-Chiew, T. (2001) · Lecture Notes in Computer Science · doi:10.1007/3-540-44503-x_20 · Cited by 1,334
Change detection in hierarchically structured information
Chawathe, S. S., Rajaraman, A., Garcia-Molina, H., & Widom, J. (1996) · Proceedings of the 1996 ACM SIGMOD international conference on Management of data - SIGMOD '96 · doi:10.1145/233269.233366 · Cited by 484
Self-citationContinual queries for Internet scale event-driven information delivery
Liu, L., Pu, C., & Tang, W. (1999) · IEEE Transactions on Knowledge and Data Engineering · doi:10.1109/69.790816 · Cited by 332
Selection of views to materialize in a data warehouse
Gupta, H., & Mumick, I. S. (2005) · IEEE Transactions on Knowledge and Data Engineering · doi:10.1109/tkde.2005.16 · Cited by 280
Estimating frequency of change
Cho, J., & Garcia-Molina, H. (2003) · ACM Transactions on Internet Technology · doi:10.1145/857166.857170 · Cited by 196
Metadata
- Authors
- Zhuge, Y., García-Molina, H., Hammer, J., & Widom, J.
- Venue
- Proceedings of the 1995 ACM SIGMOD international conference on Management of data - SIGMOD '95
- Publisher
- ACM Press
- Published
- 1995
- Pages
- 316-327
- ISSN
- 0730-8078 (ISSN-L)
- OpenAlex
- W2131165411
- Cited by
- 430
- References
- 0
- FWCI
- 25.88
- Type
- conference paper
- Language
- en
- Open access
- closed
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- Zhuge, Y., García-Molina, H., Hammer, J., & Widom, J. (1995). View maintenance in a warehousing environment. Proceedings of the 1995 ACM SIGMOD international conference on Management of data - SIGMOD '95. https://doi.org/10.1145/223784.223848
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