159 search results - page 25 / 32 » Performing grouping and aggregate functions in XML queries |
MIS
2004
Springer
14 years 22 days ago
2004
Springer
When similarity queries over multimedia databases are processed by splitting the overall query condition into a set of sub-queries, the problem of how to efficiently and effectiv...
SIGMOD
1997
ACM
13 years 11 months ago
1997
ACM
Data warehouses contain large amounts of information, often collected from a variety of independent sources. Decision-support functions in a warehouse, such as on-line analytical ...
VLDB
1990
ACM
13 years 11 months ago
1990
ACM
In this paper, we describe a new indexing technique, the time indez, for improving the performance of certain classes of temporal queries. The time index can be used to retrieve v...
VLDB
2007
ACM
14 years 1 months ago
2007
ACM
This paper describes Continuous Queries (CQ) in Oracle RDBMS, a feature that incorporates stream and complex event processing into an RDBMS, the first such attempt in commercial d...
EDBT
2006
ACM
14 years 7 months ago
2006
ACM
In [12] we introduce a novel architecture for data processing, based on a functional fusion between a data and a computation layer. In this demo we show how this architecture is le...