2859 search results - page 259 / 572 » Querying Complex Structured Databases |
163
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STEP
2003
IEEE
15 years 11 months ago
2003
IEEE
Many software applications produced today have a component, of lesser or greater importance to the structure, that is based on database management systems. What is more, this infor...
230
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CISM
1993
15 years 10 months ago
1993
The weak instance model is a framework to consider the relations in a database as a whole, regardless of the way attributes are grouped in the individual relations. Queries and upd...
281
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ICDE
2006
IEEE
16 years 8 months ago
2006
IEEE
We present ACXESS (Access Control for XML with Enhanced Security Specifications), a system for specifying and enforcing enhanced security constraints on XML via virtual "secu...
139
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DEXAW
2007
IEEE
16 years 26 days ago
2007
IEEE
Geographical data are mainly structured in layers of information. However, this model of organisation is not convenient for navigation inside a dataset, and so limits geographical...
270
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ICDE
2008
IEEE
16 years 8 months ago
2008
IEEE
Aggregate measures summarizing subsets of data are valuable in exploratory analysis and decision support, especially when dependent aggregations can be easily specified and compute...