765 search results - page 98 / 153 » Query Processing over Incomplete Autonomous Databases |
DASFAA
2007
IEEE
15 years 2 months ago
2007
IEEE
Cache groups are a powerful concept for database caching, which is used to relieve the backend database load and to keep referenced data close to the application programs at the &q...
160
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SIGMOD
2007
ACM
15 years 10 months ago
2007
ACM
Two trends are converging to make the CPU cost of a table scan a more important component of database performance. First, table scans are becoming a larger fraction of the query p...
WEBDB
2005
Springer
15 years 3 months ago
2005
Springer
In recent years it has been argued that when XML encodings become complex, DOM trees are no longer adequate for query processing. Alternative representations of XML documents, suc...
199
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
Abstract-- When dealing with massive quantities of data, topk queries are a powerful technique for returning only the k most relevant tuples for inspection, based on a scoring func...
EDBT
2009
ACM
15 years 4 months ago
2009
ACM
Materialized views (MV) can significantly improve the query performance of relational databases. In this paper, we consider MVs to optimize complex scenarios where many heterogen...