Expiring Data in a Warehouse.

Hector Garcia-Molina, Wilburt Labio, Jun Yang: Expiring Data in a Warehouse. VLDB 1998: 500-511

@inproceedings{DBLP:conf/vldb/Garcia-MolinaLY98,
  author    = {Hector Garcia-Molina and
               Wilburt Labio and
               Jun Yang 0001},
  editor    = {Ashish Gupta and
               Oded Shmueli and
               Jennifer Widom},
  title     = {Expiring Data in a Warehouse},
  booktitle = {VLDB'98, Proceedings of 24rd International Conference on Very
               Large Data Bases, August 24-27, 1998, New York City, New York,
               USA},
  publisher = {Morgan Kaufmann},
  year      = {1998},
  isbn      = {1-55860-566-5},
  pages     = {500-511},
  ee        = {db/conf/vldb/Garcia-MolinaLY98.html},
  crossref  = {DBLP:conf/vldb/98},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

Abstract

Data warehouses collect data into materialized views for analysis. After some time, some of the data may no longer be needed or may not be ofinterest. In this paper, we handle this by expiring or removing unneeded materialized view tuples. A framework supporting such expiration is presented. Within it, a user or administrator can declaratively request expirations and can specify what type of modifications are expected from external sources. The latter can significantly increase the amount of data that can be expired. We present efficient algorithms for determining what data can be expired (data not needed for maintenance of other views), taking into account the types of updates that may occur.

Copyright © 1998 by the VLDB Endowment. Permission to copy without fee all or part of this material is granted provided that the copies are not made or distributed for direct commercial advantage, the VLDB copyright notice and the title of the publication and its date appear, and notice is given that copying is by the permission of the Very Large Data Base Endowment. To copy otherwise, or to republish, requires a fee and/or special permission from the Endowment.

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Ashish Gupta, Oded Shmueli, Jennifer Widom (Eds.): VLDB'98, Proceedings of 24rd International Conference on Very Large Data Bases, August 24-27, 1998, New York City, New York, USA. Morgan Kaufmann 1998, ISBN 1-55860-566-5
Contents

References

[AHV95]: Serge Abiteboul, Richard Hull, Victor Vianu: Foundations of Databases. Addison-Wesley 1995, ISBN 0-201-53771-0
Contents
[BCL89]: José A. Blakeley, Neil Coburn, Per-Åke Larson: Updating Derived Relations: Detecting Irrelevant and Autonomously Computable Updates. ACM Trans. Database Syst. 14(3): 369-400(1989)
[BLT86]: José A. Blakeley, Per-Åke Larson, Frank Wm. Tompa: Efficiently Updating Materialized Views. SIGMOD Conference 1986: 61-71
[BT88]: Frank Wm. Tompa, José A. Blakeley: Maintaining materialized views without accessing base data. Inf. Syst. 13(4): 393-406(1988)
[CGM88]: ...
[Com]: ...
[GJM96]: Ashish Gupta, H. V. Jagadish, Inderpal Singh Mumick: Data Integration using Self-Maintainable Views. EDBT 1996: 140-144
[GL95]: Timothy Griffin, Leonid Libkin: Incremental Maintenance of Views with Duplicates. SIGMOD Conference 1995: 328-339
[GMLY98]: ...
[GMS93]: Ashish Gupta, Inderpal Singh Mumick, V. S. Subrahmanian: Maintaining Views Incrementally. SIGMOD Conference 1993: 157-166
[HZ96]: Richard Hull, Gang Zhou: A Framework for Supporting Data Integration Using the Materialized and Virtual Approaches. SIGMOD Conference 1996: 481-492
[JMS95]: H. V. Jagadish, Inderpal Singh Mumick, Abraham Silberschatz: View Maintenance Issues for the Chronicle Data Model. PODS 1995: 113-124
[Lev96]: Alon Y. Levy: Obtaining Complete Answers from Incomplete Databases. VLDB 1996: 402-412
[LGM97]: ...
[PMW90]: ...
[QGMW96]: Dallan Quass, Ashish Gupta, Inderpal Singh Mumick, Jennifer Widom: Making Views Self-Maintainable for Data Warehousing. PDIS 1996: 158-169
[Qua96]: Dallan Quass: Maintenance Expressions for Views with Aggregation. VIEWS 1996: 110-118
[QW91]: Xiaolei Qian, Gio Wiederhold: Incremental Recomputation of Active Relational Expressions. IEEE Trans. Knowl. Data Eng. 3(3): 337-341(1991)
[Ull89]: Jeffrey D. Ullman: Principles of Database and Knowledge-Base Systems, Volume II. Computer Science Press 1989, ISBN 0-7167-8162-X
Contents
[YL87]: H. Z. Yang, Per-Åke Larson: Query Transformation for PSJ-Queries. VLDB 1987: 245-254