995 search results - page 109 / 199 » Optimization of Complex Nested Queries in Relational Databas... |
186
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SIGMOD
2004
ACM
16 years 7 months ago
2004
ACM
Current day database applications, with large numbers of users, require fine-grained access control mechanisms, at the level of individual tuples, not just entire relations/views,...
227
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PVLDB
2010
15 years 5 months ago
2010
The need to improve a suboptimal execution plan picked by the query optimizer for a repeatedly run SQL query arises routinely. Complex expressions, skewed or correlated data, and ...
198
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OOPSLA
2007
Springer
16 years 1 months ago
2007
Springer
Current real-world software applications typically involve heavy use of relational and XML data and their query languages. Unfortunately object-oriented languages and database que...
203
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ADC
2003
Springer
16 years 15 days ago
2003
Springer
Selectivity estimation of queries not only provides useful information to the query processing optimization but also may give users a preview of processing results. In this paper,...
193
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ICDT
2007
ACM
16 years 1 months ago
2007
ACM
Close relationships between XML navigation and temporal logics have been discovered recently, in particular between logics LTL and CTL⋆ and XPath navigation, and between the µ-c...