995 search results - page 174 / 199 » Optimization of Complex Nested Queries in Relational Databas... |
125
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PODS
2004
ACM
16 years 1 months ago
2004
ACM
Several studies have demonstrated the effectiveness of the wavelet decomposition as a tool for reducing large amounts of data down to compact wavelet synopses that can be used to ...
217
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VLDB
2007
ACM
16 years 2 months ago
2007
ACM
We propose XRPC, a minimal XQuery extension that enables distributed yet efficient querying of heterogeneous XQuery data sources. XRPC enhances the existing concept of XQuery func...
134
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PODS
2003
ACM
16 years 1 months ago
2003
ACM
Full disjunctions are an associative extension of the outerjoin operator to an arbitrary number of relations. Their main advantage is the ability to maximally combine data from di...
107
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SIGMOD
1999
ACM
15 years 6 months ago
1999
ACM
Pre-computation and materialization of views with aggregate functions is a common technique in Data Warehouses. Due to the complex structure of the warehouse and the different pro...
POPL
2010
ACM
15 years 11 months ago
2010
ACM
We present an automated technique for generating compiler optimizations from examples of concrete programs before and after improvements have been made to them. The key technical ...