951 search results - page 73 / 191 » Groupwise Processing of Relational Queries |
178
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ICDE
1997
IEEE
15 years 11 months ago
1997
IEEE
A mediator is a domain-speci c tool to support uniform access to multiple heterogeneous information sources and to abstract and combine data from different but related databases t...
HICSS
1998
IEEE
15 years 2 months ago
1998
IEEE
Typically, users submit very simple search queries to digital document data collections. Often these queries can result in extremely broad answers or answers in which document rel...
EDBTW
2006
Springer
15 years 1 months ago
2006
Springer
Querying live media streams is a challenging problem that becomes an essential requirement in a growing number of applications. We address the problem of evaluating continuous quer...
149
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SIGMOD
2009
ACM
15 years 10 months ago
2009
ACM
In order to enable extensibility, modern query optimizers typically leverage a transformation rule based framework. Testing individual rule correctness as well as correctness of r...
SIGMOD
2010
ACM
15 years 2 months ago
2010
ACM
Current relational databases require that a database schema exist prior to data entry and require manual optimization for best performance. We describe the query optimization tech...