4397 search results - page 240 / 880 » Relational Algebra Operations |
127
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SIAMCOMP
2010
14 years 11 months ago
2010
An equality template (also equality constraint language) is a relational structure with infinite universe whose relations can be defined by boolean combinations of equalities. We ...
137
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DASFAA
2009
IEEE
15 years 11 months ago
2009
IEEE
Abstract. Extensions of relational databases which aim at utilizing various aspects of similarity and imprecision in data processing are widespread in the literature. A need for de...
136
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DEXA
2000
Springer
15 years 8 months ago
2000
Springer
The relational model, as proposed by Codd, contained the concept of relations as tables composed of tuples of single valued attributes taken from a domain. In most of the early lit...
235
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ICDE
1999
IEEE
16 years 5 months ago
1999
IEEE
Range sum queries on data cubes are a powerful tool for analysis. A range sum query applies an aggregation operation (e.g., SUM) over all selected cells in a data cube, where the ...
138
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ICECCS
2006
IEEE
15 years 10 months ago
2006
IEEE
Being a successful technique in software practice, Object Orientation (OO) is a hot topic in academic research fields. Among many formalisms, rCOS, a refinement calculus of obje...