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SIGMOD
2009
ACM
135views Database» more  SIGMOD 2009»
14 years 10 months ago
Interactive plan hints for query optimization
Commercial database systems expose query hints to fix poor plans produced by the query optimizer. However, current query hints are not flexible enough to deal with a variety of no...
Nicolas Bruno, Surajit Chaudhuri, Ravishankar Rama...
WEBDB
2004
Springer
202views Database» more  WEBDB 2004»
14 years 3 months ago
Mining Approximate Functional Dependencies and Concept Similarities to Answer Imprecise Queries
Current approaches for answering queries with imprecise constraints require users to provide distance metrics and importance measures for attributes of interest. In this paper we ...
Ullas Nambiar, Subbarao Kambhampati
ADBIS
2003
Springer
95views Database» more  ADBIS 2003»
14 years 3 months ago
Distance Join Queries of Multiple Inputs in Spatial Databases
Let a tuple of n objects obeying a query graph (QG) be called the n-tuple. The “Ddistance-value” of this n-tuple is the value of a linear function of distances of the n objects...
Antonio Corral, Yannis Manolopoulos, Yannis Theodo...
ICDE
2000
IEEE
89views Database» more  ICDE 2000»
14 years 11 months ago
Automating Statistics Management for Query Optimizers
Statistics play a key role in influencing the quality of plans chosen by a database query optimizer. In this paper, we identify the statistics that are essential for an optimizer....
Surajit Chaudhuri, Vivek R. Narasayya
CC
2010
Springer
141views System Software» more  CC 2010»
14 years 4 months ago
JReq: Database Queries in Imperative Languages
Instead of writing SQL queries directly, programmers often prefer writing all their code in a general purpose programming language like Java and having their programs be automatica...
Ming-Yee Iu, Emmanuel Cecchet, Willy Zwaenepoel