1500 search results - page 288 / 300 » Query Optimization in Database Grid |
VLDB
1992
ACM
14 years 1 months ago
1992
ACM
This paper evaluates the performance of the parallel, main-memory DBMS, PRISMA/DB. First, an architecture for parallel query execution is presented. A performance model for the ex...
EDBT
2009
ACM
14 years 1 months ago
2009
ACM
Given a set P of products, a set O of customers, and a product p P, a bichromatic reverse skyline query retrieves all the customers in O that do not find any other product in P t...
VLDB
1987
ACM
14 years 1 months ago
1987
ACM
: A buffer is a main-memory area used to reduce accessto disks. The buffer holds pages from secondary storage files. A processrequesting a page causesa fault if the pageis not in t...
EDBT
2010
ACM
14 years 29 days ago
2010
ACM
The specification of schema mappings has proved to be time and resource consuming, and has been recognized as a critical bottleneck to the large scale deployment of data integrati...
ICCS
2009
Springer
14 years 4 months ago
2009
Springer
Abstract. In knowledge bases, the open world assumption and the ability to express variables may lead to an answer redundancy problem. This problem occurs when the returned answers...