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SIGMOD
2003
ACM
133views Database» more  SIGMOD 2003»
16 years 6 months ago
Learning about data integration challenges from day one
I describe the format of the new version of an introductory database course that I taught at the University of Washington in Winter, 2003. The key idea underlying the course is to...
Alon Y. Halevy
IDEAS
2007
IEEE
89views Database» more  IDEAS 2007»
16 years 28 days ago
Foreign Superkeys and Constant References
A foreign superkey in relational database theory is a set of attributes referring to a superkey of some relation variable. In this paper, the notion of constant references is intr...
Jon Heggland
ADBIS
2007
Springer
127views Database» more  ADBIS 2007»
16 years 24 days ago
Approximate Functional Dependencies for XML Data
Functional dependencies (FDs) are an integral part of database theory since they are used in integrity enforcement and in database design. Recently, functional dependencies satisï¬...
Fabio Fassetti, Bettina Fazzinga
ADC
1993
Springer
108views Database» more  ADC 1993»
15 years 10 months ago
Using Weakest Preconditions to Simplify Integrity Constraint Checking
We present a procedure for deriving the weakest precondition for a database update and an integrity constraint. We show how to simplify the weakest precondition to produce a condi...
Michael Lawley, Rodney W. Topor, Mark Wallace
ICDE
2007
IEEE
219views Database» more  ICDE 2007»
16 years 8 months ago
Efficient Keyword Search Across Heterogeneous Relational Databases
Keyword search is a familiar and potentially effective way to find information of interest that is "locked" inside relational databases. Current work has generally assum...
Mayssam Sayyadian, Hieu LeKhac, AnHai Doan, Luis G...