6650 search results - page 1017 / 1330 » Mutating database queries |
196
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VLDB
1999
ACM
15 years 11 months ago
1999
ACM
An important issue for federated systems of diverse data sources is optimizing cross-source queries, without building knowledge of individual sources into the optimizer. This pape...
192
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CAISE
1998
Springer
15 years 11 months ago
1998
Springer
We show how model extensibility of object-oriented data management systems can be achieved through the combination of a highlevel core object data model and an architecture designe...
168
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SIGMOD
1998
ACM
15 years 11 months ago
1998
ACM
The Web is based on a browsing paradigm that makes it di cult to retrieve and integrate data from multiple sites. Today, the only way to achieve this integration is by building sp...
225
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COOPIS
1996
IEEE
15 years 11 months ago
1996
IEEE
Rational drug design is an example where integrated access to heterogeneous scientific data is urgently needed, as it becomes rapidly available due to new experimental and computa...
138
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VLDB
1997
ACM
15 years 11 months ago
1997
ACM
The result size of a query that involves multiple attributes from the same relation depends on these attributes’ joint data distribution,i.e., the frequencies of all combination...