3225 search results - page 135 / 645 » Query Optimization by Stored Queries |
COMAD
2008
13 years 10 months ago
2008
In data stream processing systems, Quality of Service (or QoS) requirements, as specified by users, are extremely important. Unlike in a database management system (DBMS), a query...
VLDB
2005
ACM
14 years 2 months ago
2005
ACM
Nested iteration is an important technique for query evaluation. It is the default way of executing nested subqueries in SQL. Although decorrelation often results in cheaper non-n...
DAWAK
2000
Springer
14 years 1 months ago
2000
Springer
In this paper, we propose a new technique for multidimensional query processing which can be widely applied in database systems. Our new technique, called tree striping, generalize...
ICDE
2010
IEEE
14 years 3 months ago
2010
IEEE
— To cope with bursty arrivals of high-volume data, a DSMS has to shed load while minimizing the degradation of Quality of Service (QoS). In this paper, we show that this problem...
CIKM
2009
Springer
14 years 3 months ago
2009
Springer
We introduce a new theoretical derivation, evaluation methods, and extensive empirical analysis for an automatic query expansion framework in which model estimation is cast as a r...