777 search results - page 19 / 156 » Optimization of Relational Preference Queries |
SIGMOD
2002
ACM
13 years 7 months ago
2002
ACM
A variety of developments combine to highlight the need for respecting order when manipulating relations. For example, new functionality is being added to SQL to support OLAP-styl...
LOGCOM
2007
13 years 7 months ago
2007
We consider the problem of incorporating arbitrary preferences in planning systems. A preference may be seen as a goal or constraint that is desirable, but not necessary, to satis...
VLDB
1999
ACM
13 years 12 months ago
1999
ACM
The problem of nding the best answers to a query quickly, rather than nding all answers, is of increasing importance as relational databases are applied in multimedia and decision...
ICIP
2003
IEEE
14 years 9 months ago
2003
IEEE
With recent advances in temporal and spatiotemporal databases, user demands are becoming more complex. As a result, simple queries are replaced by complex multitemporal query scen...
SIGMOD
2005
ACM
14 years 7 months ago
2005
ACM
Relational DBMS typically execute concurrent queries independently by invoking a set of operator instances for each query. To exploit common data retrievals and computation in con...