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» Query operations for moving objects database systems
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CLOUD
2010
ACM
14 years 2 months ago
The case for PIQL: a performance insightful query language
Large-scale, user-facing applications are increasingly moving from relational databases to distributed key/value stores for high-request-rate, low-latency workloads. Often, this m...
Michael Armbrust, Nick Lanham, Stephen Tu, Armando...
VLDB
1998
ACM
170views Database» more  VLDB 1998»
13 years 8 months ago
Advanced Data Processing in KRISYS: Modeling Concepts, Implementation Techniques, and Client/Server Issues
The increasing power of modern computers steadily opens up new application domains for advanced data processing such as engineering and knowledge-based applications. To meet their...
Stefan Deßloch, Theo Härder, Nelson Men...
SIGMOD
2002
ACM
112views Database» more  SIGMOD 2002»
14 years 9 months ago
Minimal probing: supporting expensive predicates for top-k queries
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
Kevin Chen-Chuan Chang, Seung-won Hwang
DEXA
1994
Springer
92views Database» more  DEXA 1994»
14 years 1 months ago
OR-SML: A Functional Database Programming Language for Disjunctive Information and Its Applications
We describe a functional database language OR-SML for handling disjunctive information in database queries, and its implementation on top of Standard ML 12]. The core language has ...
Elsa L. Gunter, Leonid Libkin
ICDE
1999
IEEE
116views Database» more  ICDE 1999»
14 years 10 months ago
Working Together in Harmony - An Implementation of the CORBA Object Query Service and Its Evaluation
The CORBA standard, together with its service specifications, has gained considerable attention in recent years. The CORBA Object Query Service allows for declarative access to he...
Klemens Böhm, Uwe Röhm