Skip to search form
Skip to main content
Skip to account menu
Semantic Scholar
Semantic Scholar's Logo
Search 227,741,300 papers from all fields of science
Search
Sign In
Create Free Account
Universal relation assumption
The universal relation assumption in relational databases states, that one can place all data attributes into a (possibly very wide) table, which may…
Expand
Wikipedia
(opens in a new tab)
Create Alert
Alert
Related topics
Related topics
3 relations
Broader (1)
Database theory
Federated database system
Join dependency
Papers overview
Semantic Scholar uses AI to extract papers important to this topic.
1996
1996
Transforming Conceptual Models to Object-Oriented Database Designs: Practicalities, Properties, and Peculiarities
W. Mok
,
D. Embley
International Conference on Conceptual Modeling
1996
Corpus ID: 6094555
More work is needed on devising practical, but theoretically well-founded procedures for doing object-oriented database (OODB…
Expand
1991
1991
A universal relation language interface for INGRES
Henry Lin
,
L. Miller
,
O. M.MehdiOwrang
International Conference on Scientific Computing
1991
Corpus ID: 14797205
A universal relation language interface for the database management system INGRES is presented. The interface allows the user to…
Expand
1987
1987
Construction of Universal Instances for Loop-Free Network Databases Using a Join-Like Operation
S. Jajodia
,
F. Springsteel
IEEE Transactions on Software Engineering
1987
Corpus ID: 18022126
In this paper, we give a polynomial-time method to construct effectively the unique universal instance, using as few nulls as…
Expand
1987
1987
Incorporating functional dependencies in deductive query answering
N. Spyratos
,
C. Lécluse
IEEE Third International Conference on Data…
1987
Corpus ID: 10495523
We present a set-theoretic interpretation of the relational model which allows a semantic approach to query answering. We show…
Expand
1985
1985
A Universal Relation Assumption Based on Entities and Relationships
L. Brady
International Conference on Conceptual Modeling
1985
Corpus ID: 45300003
1984
1984
On lossless tranformation of databases schemes not necessarily satisfying universal instance assumption
T. Imielinski
,
N. Spyratos
ACM SIGACT-SIGMOD-SIGART Symposium on Principles…
1984
Corpus ID: 17925029
Given a multirelational database scheme and a relational mapping f transforming it, an important question is whether the…
Expand
1983
1983
The revenge of the JD
D. Maier
,
J. Ullman
,
Moshe Y. Vardi
ACM SIGACT-SIGMOD-SIGART Symposium on Principles…
1983
Corpus ID: 16915340
Manifestations of the "universal relation assumption" can be seen either as definitions of a one-relation user view of data, or…
Expand
1983
1983
Answering queries in relational databases
A. D'Atri
,
M. Moscarini
,
N. Spyratos
ACM SIGMOD Conference
1983
Corpus ID: 18640989
This paper concerns query answering in relational databases. We assume a universe U of attributes and a set of values associated…
Expand
1979
1979
The universal relation assumption and decomposition strategies for schema design
W. L. Gewirtz
Annual International Computer Software and…
1979
Corpus ID: 10395433
This paper discusses decomposition based on a universal rela tion both as a schema design methodology and as a method to improve…
Expand
1978
1978
Problems of Relational Database Design
Y. Kambayashi
,
Katsumi Tanaka
,
S. Yajima
Data Base Design Techniques I
1978
Corpus ID: 5205647
In the logical design of a relational database, the theory of data dependencies has been playing an important role. Data…
Expand
By clicking accept or continuing to use the site, you agree to the terms outlined in our
Privacy Policy
(opens in a new tab)
,
Terms of Service
(opens in a new tab)
, and
Dataset License
(opens in a new tab)
ACCEPT & CONTINUE