492 search results - page 54 / 99 » Computing aggregations in database query languages |
SIGMOD
1996
ACM
14 years 2 months ago
1996
ACM
Decision support applications involve complex queries on very large databases. Since response times should be small, query optimization is critical. Users typically view the data ...
PPDP
2010
Springer
13 years 8 months ago
2010
Springer
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
ICDT
2010
ACM
14 years 2 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...
SIGMOD
2006
ACM
14 years 10 months ago
2006
ACM
Recently, there has been extensive research that generated a wealth of new XML full-text query languages, ranging from simple Boolean search to combining sophisticated proximity a...
MFDBS
1989
14 years 1 months ago
1989
One of the key problems when extending relational database query languages to include deductive capabilities, is to provide them with efficient methods for answering recursive que...