3524 search results - page 233 / 705 » Issues in Active Databases |
126
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SAINT
2007
IEEE
15 years 10 months ago
2007
IEEE
With the great expansion of advanced wireless technologies, users can now conveniently access the Internet from almost anywhere. We consider geographic information to be an import...
101
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IDEAS
2005
IEEE
15 years 10 months ago
2005
IEEE
In this paper, we address the problem of incrementally maintaining a histogram in response to a non-stationary update process. In relational database systems, this problem can occ...
120
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DEXA
2000
Springer
15 years 8 months ago
2000
Springer
The event calculus is a logic programming formalism for representing events and their effects especially in database applications. This paper presents the use of the event calculus...
138
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SIGMOD
1997
ACM
15 years 8 months ago
1997
ACM
Data warehouses store materialized views over base data from external sources. Clients typically perform complex read-only queries on the views. The views are refreshed periodical...
134
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DEDUCTIVE
1994
15 years 5 months ago
1994
Given an intensional database (IDB) and an extension database (EDB), the view update problem translates updates on the IDB into updates on the EDB. One approach to the view update...