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VLDB
1987
ACM
86views Database» more  VLDB 1987»
14 years 3 months ago
Independent Database Schemes under Functional and Inclusion Dependencies
In a context considering in a unique framework all the relations in a database, by means of the notion of global consistency, independent database schemes allow enforcement of con...
Paolo Atzeni, Edward P. F. Chan
VLDB
1987
ACM
72views Database» more  VLDB 1987»
14 years 3 months ago
Providing Time-Related Constraints for Conventional Database Systems
A model for a historical database is described which is based upon time-stamped tuples as the unit of storage. The model includes both physical and logical time-stamps. The techni...
T. Abbod, K. Brown, H. Noble
SIGMOD
1987
ACM
52views Database» more  SIGMOD 1987»
14 years 3 months ago
A System for Semantic Query Optimization
Sreekumar T. Shenoy, Z. Meral Özsoyoglu
SIGMOD
1987
ACM
55views Database» more  SIGMOD 1987»
14 years 3 months ago
Magic Counting Methods
Domenico Saccà, Carlo Zaniolo
SIGMOD
1987
ACM
69views Database» more  SIGMOD 1987»
14 years 3 months ago
Extending the Relational Algebra to Support Transaction Time
In this paper we discuss extensions to the conventional relatronal algebra to support transaction time We show that these extensions are applicable to hrstorlcal algebras that sup...
L. Edwin McKenzie, Richard T. Snodgrass
SIGMOD
1987
ACM
95views Database» more  SIGMOD 1987»
14 years 3 months ago
Query Optimization by Simulated Annealing
Yannis E. Ioannidis, Eugene Wong
SIGMOD
1987
ACM
61views Database» more  SIGMOD 1987»
14 years 3 months ago
The EXODUS Optimizer Generator
Goetz Graefe, David J. DeWitt
ICDE
1987
IEEE
81views Database» more  ICDE 1987»
14 years 3 months ago
Multidimensional Dynamic Quantile Hashing is Very Efficient for Non-Uniform Record Distributions
: Previous multidimensional dynamic hashing schemes exhibit two obvious shortcomings. First, even for uniform record distribution, the retrieval performance of these schemes suffer...
Hans-Peter Kriegel, Bernhard Seeger