2338 search results - page 231 / 468 » Using UML to model relational database operations |
159
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WEBDB
2010
Springer
15 years 11 months ago
2010
Springer
For documents with complex or atypical annotations, multihierarchical structures play the role of the document tree in traditional XML documents. We define a model of overlapping...
295
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GIS
2005
ACM
16 years 7 months ago
2005
ACM
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
245
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WISE
2010
Springer
15 years 4 months ago
2010
Springer
Advancement in mobile computing technologies has prompted strong needs for database systems that can be used in small devices such as sensors, cellular phones, PDAs, car navigator...
180
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VLDB
2004
ACM
15 years 12 months ago
2004
ACM
This presentation will discuss several database technology challenges that are faced when building a data warehouse. It will touch on the challenges posed by high capacity drives ...
205
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DBPL
1993
Springer
15 years 10 months ago
1993
Springer
In this paper we study the expressive power of query languages for nested bags. We de ne the ambient bag language by generalizing the constructs of the relational language of Brea...