6650 search results - page 1203 / 1330 » Mutating database queries |
143
Voted
SIGUCCS
2004
ACM
15 years 8 months ago
2004
ACM
Academic institutions’ dependence on web-based technologies to improve efficiency in class offerings, academic records, and office documentation is increasing at a rapid pace. T...
125
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CIKM
2004
Springer
15 years 8 months ago
2004
Springer
We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schemat...
146
Voted
VLDB
2004
ACM
15 years 8 months ago
2004
ACM
At a fundamental level, the key challenge in data integration is to reconcile the semantics of disparate data sets, each expressed with a different database structure. I argue th...
120
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PODS
2010
ACM
15 years 8 months ago
2010
ACM
We give the first optimal algorithm for estimating the number of distinct elements in a data stream, closing a long line of theoretical research on this problem begun by Flajolet...
148
Voted
VLDB
1999
ACM
15 years 7 months ago
1999
ACM
Electronic commerce is emerging as a major Websupported application. In this paper we argue that database technology can, and should, provide the backbone for a wide range of such...