443 search results - page 43 / 89 » Relational Approach to Logical Query Optimization of XPath |
ICTAI
1997
IEEE
13 years 11 months ago
1997
IEEE
Many black box optimization algorithms have sufcient exibility to allow them to adapt to the varying circumstances they encounter. These capabilities are of two primary sorts: 1) ...
TIME
2005
IEEE
14 years 1 months ago
2005
IEEE
Historical information can be effectively preserved using XML and searched through powerful historical queries written in XQuery. Indeed, by storing the successive versions of a d...
TIME
2009
IEEE
14 years 2 months ago
2009
IEEE
—Past research on temporal databases has primarily focused on state-based representations and on relational query language extensions for such representations. This led to many d...
FGCS
2000
13 years 7 months ago
2000
This paper focuses on parallel query optimization. We consider the operator problem and introduce a new class of execution strategies called Linear-Oriented Bushy Trees (LBTs). Co...
DAWAK
2000
Springer
13 years 12 months ago
2000
Springer
In the context of multidimensional databases implemented on relational DBMSs through star schemes, the most effective technique to enhance performances consists of materializing re...