82 search results - page 9 / 17 » Rewriting nested XML queries using nested views |
123
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EDBT
2004
ACM
15 years 11 months ago
2004
ACM
XML makes data flexible in representation and easily portable on the Web but it also substantially inflates data size as a consequence of using tags to describe data. Although many...
DBPL
2009
Springer
15 years 6 months ago
2009
Springer
In this paper, we revisit the view based security framework for XML without imposing any of the previously considered restrictions on the class of queries, the class of DTDs, and t...
106
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SIGMOD
2004
ACM
15 years 11 months ago
2004
ACM
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
WEBDB
2005
Springer
15 years 5 months ago
2005
Springer
In the relational model it has been shown that the flat relational algebra has the same expressive power as the nested relational algebra, as far as queries over flat relations ...
180
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VLDB
2007
ACM
15 years 12 months ago
2007
ACM
The database community is on a constant quest for better integration of data management and knowledge management. Recently, with the increasing use of ontology in various applicat...