2063 search results - page 115 / 413 » Containment of Aggregate Queries |
128
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GPCE
2008
Springer
15 years 5 months ago
2008
Springer
High-level query constructs help greatly improve the clarity of programs and the productivity of programmers, and are being introduced to increasingly more languages. However, the...
135
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SIGMOD
2002
ACM
15 years 4 months ago
2002
ACM
Traditional query processors generate full, accurate query results, either in batch or in pipelined fashion. We argue that this strict model is too rigid for exploratory queries o...
175
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TSC
2010
14 years 11 months ago
2010
Data-Providing (DP) services allow query-like access to organizations' data via web services. The invocation of a DP service results in the execution of a query over data sour...
162
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FOCS
1998
IEEE
15 years 8 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
245
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SIGMOD
2006
ACM
16 years 4 months ago
2006
ACM
Monitoring extreme values (MAX or MIN) is a fundamental problem in wireless sensor networks (and in general, complex dynamic systems). This problem presents very different algorit...