363 search results - page 7 / 73 » Analyzing Plan Diagrams of Database Query Optimizers |
SIGMOD
2000
ACM
14 years 1 days ago
2000
ACM
Testing an SQL database system by running large sets of deterministic or stochastic SQL statements is common practice in commercial database development. However, code defects oft...
SSDBM
2008
IEEE
14 years 2 months ago
2008
IEEE
Increasingly, many data sources appear as online databases, hidden behind query forms, thus forming what is referred to as the deep web. It is desirable to have systems that can pr...
ICDT
2007
ACM
14 years 1 months ago
2007
ACM
We consider the problem of querying data sources that have limited capabilities and can thus only be accessed by complying with certain binding patterns for their attributes. This ...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
We define a framework for static optimization of sliding window conjunctive queries over infinite streams. When computational resources are sufficient, we propose that the goal of...
ICDT
1999
ACM
13 years 12 months ago
1999
ACM
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...