66 search results - page 8 / 14 » Optimizing Nested Queries with Parameter Sort Orders |
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Virtually every commercial query optimizer chooses the best plan for a query using a cost model that relies heavily on accurate cardinality estimation. Cardinality estimation erro...
GIS
2005
ACM
14 years 8 months ago
2005
ACM
Databases of moving objects are important for air traffic control, ground traffic, and battlefield configurations. We introduce the (historical and spatial) range close-pair query...
KES
2007
Springer
14 years 1 months ago
2007
Springer
The current Information Retrieval Systems return hundreds or thousands of documents in response to a query. Users consider only the first 20 or 30, but documents are often sorted a...
DEEC
2006
IEEE
14 years 1 months ago
2006
IEEE
Web applications have become an invaluable source of information for many different vertical solutions, but their complex navigation and semistructured format make their informatio...
VLDB
1992
ACM
13 years 11 months ago
1992
ACM
This paper considers the problem of adding list as a type constructor to an object-oriented data model. In particular, we are concerned with how lists in a database can be constru...