287 search results - page 16 / 58 » Optimization Techniques for Queries with Expensive Methods |
VLDB
1994
ACM
13 years 11 months ago
1994
ACM
A new type of optimization, called predicate move-around, ia introduced. It is shown how this optimization `considerably improvea the efficiency of evaluating SQL queries that hav...
PVLDB
2010
13 years 5 months ago
2010
Graphs are of growing importance in modeling complex structures such as chemical compounds, proteins, images, and program dependence. Given a query graph Q, the subgraph isomorphi...
CIKM
2004
Springer
14 years 24 days ago
2004
Springer
At present, most of the state-of-the-art solutions for XML access controls are either (1) document-level access control techniques that are too limited to support fine-grained sec...
SAS
2001
Springer
13 years 11 months ago
2001
Springer
We present the implementation of cTI, a system for universal left-termination inference of logic programs, which heavily relies on static analysis techniques. Termination inference...
BTW
2007
Springer
14 years 1 months ago
2007
Springer
: Statistics that accurately describe the distribution of data values in the columns of relational tables are essential for effective query optimization in a database management sy...