1042 search results - page 160 / 209 » Constraint Databases, Data Structures and Efficient Query Ev... |
SMC
2010
IEEE
13 years 8 months ago
2010
IEEE
—Deep Web contents are accessed by queries submitted to Web databases and the returned data records are enwrapped in dynamically generated Web pages (they will be called deep Web...
SIGMOD
2009
ACM
14 years 10 months ago
2009
ACM
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
DKE
2002
13 years 10 months ago
2002
An important issue in data warehouse development is the selection of a set of views to materialize in order to accelerate OLAP queries, given certain space and maintenance time co...
SIGMOD
2007
ACM
14 years 10 months ago
2007
ACM
Optimizing SQL subqueries has been an active area in database research and the database industry throughout the last decades. Previous work has already identified some approaches ...
SIGMOD
2007
ACM
14 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...