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ICDE
2002
IEEE
126views Database» more  ICDE 2002»
14 years 9 months ago
Sequenced Subset Operators: Definition and Implementation
Difference, intersection, semi-join and anti-semi-join may be considered binary subset operators, in that they all return a subset of their left-hand argument. These operators are...
Joseph Dunn, Sean Davey, Anne Descour, Richard T. ...
SIGMOD
2005
ACM
162views Database» more  SIGMOD 2005»
14 years 7 months ago
Clio grows up: from research prototype to industrial tool
Clio, the IBM Research system for expressing declarative schema mappings, has progressed in the past few years from a research prototype into a technology that is behind some of I...
Laura M. Haas, Mauricio A. Hernández, Howar...
SIGMOD
2004
ACM
150views Database» more  SIGMOD 2004»
14 years 7 months ago
Integrating Vertical and Horizontal Partitioning Into Automated Physical Database Design
In addition to indexes and materialized views, horizontal and vertical partitioning are important aspects of physical design in a relational database system that significantly imp...
Sanjay Agrawal, Vivek R. Narasayya, Beverly Yang
SIGMOD
2003
ACM
118views Database» more  SIGMOD 2003»
14 years 7 months ago
Improving the Efficiency of Database-System Teaching
The education industry has a very poor record of productivity gains. In this brief article, I outline some of the ways the teaching of a college course in database systems could b...
Jeffrey D. Ullman
ICDE
2010
IEEE
231views Database» more  ICDE 2010»
14 years 2 months ago
Estimating the progress of MapReduce pipelines
Abstract— In parallel query-processing environments, accurate, time-oriented progress indicators could provide much utility given that inter- and intra-query execution times can ...
Kristi Morton, Abram Friesen, Magdalena Balazinska...