712 search results - page 53 / 143 » Decoupled Query Optimization for Federated Database Systems |
132
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EDBT
2008
ACM
16 years 3 months ago
2008
ACM
Abstract. Monitoring aggregates on IP traffic data streams is a compelling application for data stream management systems. Often, such streaming aggregation queries involve joining...
135
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CIDR
2009
15 years 4 months ago
2009
In database query processing, actual run-time conditions (e.g., actual selectivities and actual available memory) very often differ from compile-time expectations of run-time cond...
197
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SIGMOD
2007
ACM
16 years 3 months ago
2007
ACM
Good cardinality estimates are critical for generating good execution plans during query optimization. Complex predicates, correlations between columns, and user-defined functions...
113
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VLDB
1999
ACM
15 years 7 months ago
1999
ACM
Data intensive applications today usually run in either a clientserver or a middleware environment. In either case, they must efficiently handle both database queries, which proc...
141
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SIGMOD
2004
ACM
16 years 3 months ago
2004
ACM
Peer data management systems (PDMS) offer a flexible architecture for decentralized data sharing. In a PDMS, every peer is associated with a schema that represents the peer's...