712 search results - page 43 / 143 » Decoupled Query Optimization for Federated Database Systems |
127
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VLDB
1998
ACM
15 years 6 months ago
1998
ACM
We propose a multi-dimensional language called nD-SQL with the following features: (i) nD-SQL supports queries that interoperate amongst multiple relational sources with heterogen...
216
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ICDE
2003
IEEE
16 years 3 months ago
2003
IEEE
Query optimizers use base-table statistics to derive statistics on the sub-plans that are enumerated during optimization. In practice, traditional optimizers rely on a number of s...
191
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ICDE
2007
IEEE
16 years 3 months ago
2007
IEEE
We present a system that optimizes sequences of related client requests by combining small requests into larger ones, thus reducing per-request overhead. The system predicts upcom...
111
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EDBT
2008
ACM
16 years 2 months ago
2008
ACM
Enterprises may have multiple database systems spread across the organization for redundancy or for serving different applications. In such systems, query workloads can be distrib...
128
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VLDB
2012
ACM
13 years 9 months ago
2012
ACM
In the last decade, spatio-temporal database research focuses on the design of effective and efficient indexing structures in support of location-based queries such as predictive...