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VLDB
1992
ACM
108views Database» more  VLDB 1992»
15 years 10 months ago
Querying in Highly Mobile Distributed Environments
New challenges to the database field brought about by the rapidly growing area of wireless personal communication are presented. Preliminary solutions to two of the major problems...
Tomasz Imielinski, B. R. Badrinath
ICDE
2007
IEEE
117views Database» more  ICDE 2007»
16 years 8 months ago
Unnesting Scalar SQL Queries in the Presence of Disjunction
Optimizing nested queries is an intricate problem. It becomes even harder if in a nested query the linking predicate or the correlation predicate occurs disjunctively. We present ...
Matthias Brantner, Norman May, Guido Moerkotte
VLDB
2009
ACM
143views Database» more  VLDB 2009»
16 years 7 months ago
Sampling-based estimators for subset-based queries
We consider the problem of using sampling to estimate the result of an aggregation operation over a subset-based SQL query, where a subquery is correlated to an outer query by a NO...
Shantanu Joshi, Christopher M. Jermaine
DEXA
2009
Springer
201views Database» more  DEXA 2009»
16 years 1 months ago
Dynamic Query Processing for P2P Data Services in the Cloud
With the trend of cloud computing, data and computing are moved away from desktop and are instead provided as a service from the cloud. Data-as-a-service enables access to a wealth...
Pawel Jurczyk, Li Xiong
VLDB
2001
ACM
113views Database» more  VLDB 2001»
15 years 11 months ago
Querying XML Views of Relational Data
XML has emerged as the standard data exchange format for Internet-based business applications. This has created the need to publish existing business data, stored in relational da...
Jayavel Shanmugasundaram, Jerry Kiernan, Eugene J....