Results 281 to 290 of about 39,846 (313)

Relational Scaling and Databases

2002
More than 20 years of theoretical development and practical experience in the field of Conceptual Information Systems have made available a wide variety of structure and procedures to gain new knowledge from data or to present it in a user-friendly way, by restructuring the data in a conceptual way to help the user interpret and understand the meaning.
openaire   +1 more source

An Algebraic Theory of Relational Databases

Bell System Technical Journal, 1983
In this paper we present a theory of relational database systems based on the partition lattice, which represents a new mathematical approach to the structure of relational database systems. A partition lattice can be defined for any given relation.
openaire   +2 more sources

Nulls in relational databases

ACM SIGMOD Record, 1989
This paper discusses the semantic issues related to null values problem in relational databases. We argue that the proposed set of maybe operations with the three valued logic is still not adequate and needs further enhancements.
openaire   +1 more source

On the normalization of relational databases

Information Processing Letters, 1979
B. Srinivasan, V. Rajaraman
openaire   +2 more sources

Performance analysis of NoSQL and relational databases with MongoDB and MySQL

Materials Today: Proceedings, 2020
Benymol JOSÉ, Sajimon Abraham
exaly  

A fuzzy representation of data for relational databases

Fuzzy Sets and Systems, 1982
Frederick E Petry
exaly  

Information-theoretic measures of uncertainty for rough sets and rough relational databases

Information Sciences, 1998
F Petry, Theresa Beaubouef, Frederick E Petry   +2 more
exaly  

Ontologies versus relational databases: are they so different? A comparison

Artificial Intelligence Review, 2011
Carmen Martinez-Cruz, Ignacio J Blanco, Vila M Amparo   +2 more
exaly  

Incorporating computed relations in relational databases

Proceedings of the 1981 ACM SIGMOD international conference on Management of data - SIGMOD '81, 1981
David Maier 0001, David Scott Warren
openaire   +1 more source

Designing Relational Databases

2000
Candace C. Fleming, Barbara von Halle
openaire   +1 more source