3269 search results - page 148 / 654 » Query Optimization for XML |
121
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EDBT
2006
ACM
16 years 3 months ago
2006
ACM
In authorization-transparent access control, users formulate their queries against the database schema rather than against authorization views that transform and hide data. The Tru...
233
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ICDE
2007
IEEE
16 years 4 months ago
2007
IEEE
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
134
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VLDB
2002
ACM
15 years 3 months ago
2002
ACM
Query optimization is a computationally intensive process, especially for complex queries. We present here a tool, called PLASTIC, that can be used by query optimizers to amortize...
109
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WWW
2006
ACM
16 years 4 months ago
2006
ACM
Structural summaries are data structures that preserve all structural features of XML documents in a compact form. We investigate the applicability of the most popular summaries a...
128
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EDBTW
2006
Springer
15 years 7 months ago
2006
Springer
Abstract. While XQuery is becoming a standard, the W3C is currently discussing the features of an update language for XML, and its requirements. Therefore, time is ripe for designi...