410 search results - page 17 / 82 » Optimizing Queries with Materialized Views |
SIGMOD
1995
ACM
15 years 1 months ago
1995
ACM
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...
CIKM
2008
Springer
14 years 11 months ago
2008
Springer
Real-time materialized view maintenance has become increasingly popular, especially in real-time data warehousing and data streaming environments. Upon updates to base relations, ...
SDMW
2007
Springer
15 years 3 months ago
2007
Springer
Abstract. We investigate the experimental effectiveness of query rewriting over XML security views. Our model consists of access control policies specified over DTDs with XPath e...
VLDB
1998
ACM
15 years 1 months ago
1998
ACM
To fulfill the requirement of fast interactive multidimensional data analysis, database systems precompute aggregate views on some subsets of dimensions and their corresponding hi...
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ICDE
2003
IEEE
15 years 11 months ago
2003
IEEE
Semantic caches, originally proposed for client-server database systems, are being recently deployed to accelerate the serving of dynamic web content by transparently caching data...