1500 search results - page 214 / 300 » Query Optimization in Database Grid |
VLDB
1994
ACM
14 years 1 months ago
1994
ACM
Physical data independence is touted as a central feature of modern database systems. Both relational and object-oriented systems, however, force users to frame their queries in t...
SIGMOD
2004
ACM
14 years 9 months ago
2004
ACM
Despite the widespread and growing use of asynchronous copies to improve scalability, performance and availability, this practice still lacks a firm semantic foundation. Applicati...
SIGMOD
2010
ACM
13 years 9 months ago
2010
ACM
An increasing number of applications operate on data obtained from the Web. These applications typically maintain local copies of the web data to avoid network latency in data acc...
ICDE
2000
IEEE
14 years 10 months ago
2000
IEEE
Optimizing queries that involve operations on spatial data requires estimating the selectivity and cost of these operations. In this paper, we focus on estimating the cost of spat...
SIGMOD
2009
ACM
14 years 9 months ago
2009
ACM
With the proliferation of the RDF data format, engines for RDF query processing are faced with very large graphs that contain hundreds of millions of RDF triples. This paper addre...