777 search results - page 99 / 156 » Optimization of Relational Preference Queries |
VLDB
1995
ACM
14 years 1 months ago
1995
ACM
New demandsare put on query processing in Object-Oriented(00) databasesto provide efficient andrelationally completequery languages. A flexible 00 data model requires overloading ...
BTW
2007
Springer
14 years 4 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...
ICDE
2003
IEEE
14 years 11 months ago
2003
IEEE
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
SIGMOD
2005
ACM
14 years 10 months ago
2005
ACM
With XQuery becoming the standard language for querying XML, and the relational SQL platform being recognized as an important platform to store and process XML, the SQL/XML standa...
ICDE
2008
IEEE
14 years 11 months ago
2008
IEEE
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...