Paper Info
Title
Incremental view update for a mobile data warehouse
Abstract
In a mobile environment, querying the database at a stationary server by a mobile client is expensive due to the limited bandwidth of a wireless channel and the instability of the wireless network. We address this problem by maintaining a materialized view in a mobile client's local storage. The materialized view contains results of common queries in which the mobile client is interested. We term such a materialized view, a mobile data warehouse. In this paper, we address the view update problem for maintaining a mobile data warehouse, viz., changes to the databaze should be reflected to the derived materialized view in a consistent manner. Existing view update mechanisms are "push-based". The server is responsible for notifying all clients whose views might be affected by the database changes. This is not appropriate in a mobile environment due to the frequent disconnection of a wireless channel. We propose a "pull-based" approach that allows a materialized view to be updated at clients incrementally. Our approach requires a client to request changes to its view from the server when the client needs it. We will demonstrate the feasibility of our approach with preliminary experiments via simulation.
Year
DOI
Venue
1998
10.1145/330560.330846
SAC
Keywords
Field
DocType
data warehouse,incremental view update,mobile database,view maintenance,mobile data warehouse,materialized view,materialized views,wireless network
Data warehouse,Warehouse,Information retrieval,Computer science,View maintenance,Mobile database,Mobile broadband,Materialized view,Database
Conference
ISBN
Citations 
PageRank 
0-89791-969-6
5
0.65
References 
Authors
11
3
Name
Order
Citations
PageRank
Ken C. K. Lee162932.37
Antonio Si212046.97
Hong V. Leong37246.21