2724 search results - page 78 / 545 » Optimizing Queries on Files |
122
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VLDB
1995
ACM
15 years 5 months ago
1995
ACM
We address the problem of finding parallel plans for SQL queries using the two-phase approach of join ordering and query rewrite (JOQR) followed by parallelization. We focus on t...
113
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ICDCN
2009
Springer
15 years 6 months ago
2009
Springer
Wireless sensor networks with multiple users collecting data directly from the sensors have many potential applications. An important problem is to allocate for each user a query r...
111
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TOOLS
1999
IEEE
15 years 5 months ago
1999
IEEE
Path traversals have been recognized as one of the strengths of object-oriented query processing as object retrieval can be carried out through pointer navigation. Apart from path...
109
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KDD
1994
ACM
15 years 5 months ago
1994
ACM
Semantic query optimization can dramatically speed up database query answering by knowledge intensive reformulation. But the problem of how to learn required semantic rules has no...
107
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PODC
2010
ACM
15 years 5 months ago
2010
ACM
This paper deals with pipelined queries over services. The execution plan of such queries defines an order in which the services are called. We present the theoretical underpinni...