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DEBU
2008
139views more  DEBU 2008»
13 years 8 months ago
Testing SQL Server's Query Optimizer: Challenges, Techniques and Experiences
Query optimization is an inherently complex problem, and validating the correctness and effectiveness of a query optimizer can be a task of comparable complexity. The overall proc...
Leo Giakoumakis, César A. Galindo-Legaria
CORR
2010
Springer
92views Education» more  CORR 2010»
13 years 6 months ago
Benchmarking triple stores with biological data
We have compared the performance of five non-commercial triple stores, Virtuoso-open source, Jena SDB, Jena TDB, SWIFT-OWLIM and 4Store. We examined three performance aspects: the ...
Vladimir Mironov, Nirmala Seethappan, Ward Blond&e...
VLDB
2004
ACM
125views Database» more  VLDB 2004»
14 years 1 months ago
Indexing XML Data Stored in a Relational Database
As XML usage grows for both data-centric and document-centric applications, introducing native support for XML data in relational databases brings significant benefits. It provide...
Shankar Pal, Istvan Cseri, Gideon Schaller, Oliver...
IIS
2004
13 years 10 months ago
Query Selectivity Estimation via Data Mining
Estimating the result size of a join is an important query optimization problem as it determines the choice of a good query evaluation strategy. Yet, there are few efficient techni...
Jarek Gryz, Dongming Liang
ICDE
2010
IEEE
288views Database» more  ICDE 2010»
14 years 8 months ago
Fast In-Memory XPath Search using Compressed Indexes
A large fraction of an XML document typically consists of text data. The XPath query language allows text search via the equal, contains, and starts-with predicates. Such predicate...
Diego Arroyuelo, Francisco Claude, Sebastian Manet...