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Updating distributed materialized views

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2 Author(s)
Segev, A. ; Sch. of Bus. Adm., California Univ., Berkeley, CA, USA ; Park, J.

The problem of updating materialized views in distributed database systems is discussed. An architecture and detailed procedures for updating a collection of remote views with arbitrary refresh times by using a single differential file are described. The efficiency of the update procedure is enhanced by adopting s multiquery optimization approach and by introducing a powerful prescreening procedure to eliminate differential tuples. It is shown that even for a single remote view, there are many instances where the update procedure performs better (with respect to total I/O and communication costs) than a base table approach

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Knowledge and Data Engineering, IEEE Transactions on  (Volume:1 ,  Issue: 2 )