492 search results - page 9 / 99 » Computing aggregations in database query languages |
ICDE
1999
IEEE
14 years 11 months ago
1999
IEEE
Temporal reasoning and temporal query languages present di cult research problems of theoretical interest and practical importance. One problem is the chasm between point-based te...
SIGMOD
2010
ACM
14 years 2 months ago
2010
ACM
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
ICDE
2006
IEEE
14 years 11 months ago
2006
IEEE
Peer-to-peer databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. The problem of answering large scal...
SIGMOD
1999
ACM
14 years 2 months ago
1999
ACM
Computing multidimensional aggregates in high dimensions is a performance bottleneck for many OLAP applications. Obtaining the exact answer to an aggregation query can be prohibit...
ICDE
2001
IEEE
14 years 11 months ago
2001
IEEE
We consider the problems of computing aggregation queries in temporal databases, and of maintaining materialized temporal aggregate views efficiently. The latter problem is partic...