2724 search results - page 133 / 545 » Optimizing Queries on Files |
169
click to vote
VLDB
2001
ACM
15 years 7 months ago
2001
ACM
Most modern DBMS optimizers rely upon a cost model to choose the best query execution plan (QEP) for any given query. Cost estimates are heavily dependent upon the optimizer’s e...
98
Voted
SIGMETRICS
1999
ACM
15 years 7 months ago
1999
ACM
—This paper evaluates techniques for improving operating system and network protocol software support for high-performance World Wide Web servers. We study approaches in three ca...
123
click to vote
PE
2006
Springer
15 years 3 months ago
2006
Springer
In this paper we model and study the performance of peer-to-peer (P2P) file sharing systems in terms of their `service capacity'. We identify two regimes of interest: the tra...
233
click to vote
ICDE
2006
IEEE
16 years 4 months ago
2006
IEEE
The XPath language incorporates powerful primitives for formulating queries containing nested subexpressions which are existentially or universally quantified. However, even the b...
139
click to vote
DAWAK
2003
Springer
15 years 8 months ago
2003
Springer
We introduce a new method for optimization of SQL queries with nested subqueries. The method is based on the idea of Boolean aggregates, aggregates that compute the conjunction or ...