995 search results - page 53 / 199 » Optimization of Complex Nested Queries in Relational Databas... |
202
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ICDE
1999
IEEE
16 years 3 months ago
1999
IEEE
In this paper we study the node distribution of an Rtree storing region data, like for instance islands, lakes or human-inhabited areas. We will show that real region datasets are...
120
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ADBIS
2004
Springer
15 years 7 months ago
2004
Springer
Abstract. Query reformulation techniques based on semantic knowledge have been used in two ways in database management systems, namely for query optimization and for data integrati...
128
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ISMIS
2003
Springer
15 years 7 months ago
2003
Springer
Object-Relational database management system is an integrated hybrid cooperative approach to combine the best practices of both the relational model utilizing SQL queries and the ...
215
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ICDE
1999
IEEE
16 years 3 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 ...
137
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BMCBI
2010
15 years 2 months ago
2010
Background: Molecular interaction networks can be efficiently studied using network visualization software such as Cytoscape. The relevant nodes, edges and their attributes can be...