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ICDE
1987
IEEE
143views Database» more  ICDE 1987»
13 years 11 months ago
A Query Processing Strategy for the Decomposed Storage Model
Handling parallelism in database systems involves the specification of a storage model, a placement strategy, and a query processing strategy. An important goal is to determine th...
Setrag Khoshafian, George P. Copeland, Thomas Jago...
ER
1987
Springer
78views Database» more  ER 1987»
13 years 11 months ago
Entity-Relationship Database User Interfaces
We report on experience with database user interfaces that are entity-relationship oriented, rather than relation-oriented, and provide a new level of ease-of-use for information ...
T. R. Rogers, R. G. G. Cattell
DBPL
1987
Springer
113views Database» more  DBPL 1987»
13 years 11 months ago
Orderings and Types in Databases
This paper investigates a method to represent database objects as typed expressions in programming languages. A simple typed language supporting non-flat records, higher-order rel...
Atsushi Ohori
DBPL
1987
Springer
54views Database» more  DBPL 1987»
13 years 11 months ago
Control and Optimization Strategies in the Implementation of LDL
Ravi Krishnamurthy, Carlo Zaniolo
VLDB
1991
ACM
141views Database» more  VLDB 1991»
13 years 11 months ago
Efficiency of Nested Relational Document Database Systems
Systems designed for efficient retrieval of conventional data can be very inefficient at retrieving documents. Documents have more complex structure than conventional data, and th...
Justin Zobel, James A. Thom, Ron Sacks-Davis
VLDB
1991
ACM
113views Database» more  VLDB 1991»
13 years 11 months ago
Implementing Set-Oriented Production Rules as an Extension to Starburst
This paper describes the implementation of a set-oriented database production rule language proposed in earlier papers. Our implementation uses the extensibility features of the St...
Jennifer Widom, Roberta Cochrane, Bruce G. Lindsay
VLDB
1991
ACM
145views Database» more  VLDB 1991»
13 years 11 months ago
A Taxonomy and Performance Model of Data Skew Effects in Parallel Joins
Recent work on parallel joins and data skew has concentrated on algorithm design without considering the causes and chara.cteristics of data. skew itself. Existming ana.lyt,ic mod...
Christopher B. Walton, Alfred G. Dale, Roy M. Jene...
VLDB
1991
ACM
165views Database» more  VLDB 1991»
13 years 11 months ago
Aggregation and Relevance in Deductive Databases
In this paper we present a technique to optimize queries on deductive databases that use aggregate operations such as min, max, and “largest Ic values.” Our approach is based ...
S. Sudarshan, Raghu Ramakrishnan
VLDB
1991
ACM
157views Database» more  VLDB 1991»
13 years 11 months ago
Integrating Implicit Answers with Object-Oriented Queries
Queries in object-oriented datab;Lqcs are formulated against a class and retrieve instnnccls of the class sat,isfying a certain predicate on the att,riblltes of the class. The pre...
Hava T. Siegelmann, B. R. Badrinath
VLDB
1991
ACM
104views Database» more  VLDB 1991»
13 years 11 months ago
A Metadata Approach to Resolving Semantic Conflicts
In this paper we describe a rule-based approach to semantic specification that can be used to establish semantic agreement between a source and receiver. Query processing techniqu...
Michael Siegel, Stuart E. Madnick