191 search results - page 2 / 39 » Aggregation Queries in the Database-As-a-Service Model |
ADBIS
2005
Springer
13 years 10 months ago
2005
Springer
We present a formal analysis of the following view-selection problem: Given a set of queries and a database, return definitions of views that, when materialized in the database, w...
VLDB
2007
ACM
14 years 5 months ago
2007
ACM
As more sensitive data is captured in electronic form, security becomes more and more important. Data encryption is the main technique for achieving security. While in the past en...
EDBT
2002
ACM
14 years 5 months ago
2002
ACM
Abstract. Aggregate window queries return summarized information about objects that fall inside a query rectangle (e.g., the number of objects instead of their concrete ids). Tradi...
IS
2008
13 years 4 months ago
2008
In spatial networks, clustering adjacent data to disk pages is highly likely to reduce the number of disk page accesses made by the aggregate network operations during query proce...
ICDE
2007
IEEE
13 years 11 months ago
2007
IEEE
Moving objects databases (MOD) have been receiving increasing attention from the database community in recent years, mainly due to the wide variety of applications that technology...