Results 81 to 90 of about 302,941 (218)
Derivation of constraints and database relations
, 1996 In this paper we investigate which constraints may be derived from a given set of constraints. We show that, given a set of relations R, all of which are invariant under some set of permutations P, it is possible to derive any other relation which is invariant under P, using only the projection, Cartesian product, and selection operators, together with
Cohen, D., Gyssens, Marc, Jeavons, P.
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Design and application of a customizable relational DataBase to assess clinicopathological correlations and concomitant pathology in neurodegenerative diseases. [PDF]
Brain Pathol, 2023 Journe-Mallet I +12 more
europepmc +1 more source
Realization Of Methods Of Comparison Of Sets By Using Relational Dbms Methods.
Ìнформаційні технології в освіті, 2009 The article deals with questions concerning usage of modern DBMS, such as building queries with the "Great Divide" relational division. Various variants of relational division usage are described.
K. Fedorchenko
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Performance Comparison of NOSQL Database Cassandra and SQL Server for Large Databases
JISR on Computing, 2016 The performance comparison of NoSQL database and a Relational Database Management Systems has been done to identify which database responds faster to specific types of requests and suitability of these databases for different scenarios.
Khalid Mahmood
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An authorization mechanism for a relational database system [PDF]
, 1976 Patricia P. Griffiths, Bradford W. Wade
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A relational database within the Leg Club Network: an audit. [PDF]
Int Wound J, 2021 McIntyre N +4 more
europepmc +1 more source
Believe It or Not: Adding Belief Annotations to Databases [PDF]
, 2008 We propose a database model that allows users to annotate data with belief statements. Our motivation comes from scientific database applications where a community of users is working together to assemble, revise, and curate a shared data repository.
Balazinska, Magdalena +3 more
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Relational Databases and Bell’s Theorem [PDF]
, 2013 Our aim in this paper is to point out a surprising formal connection, between two topics which seem on face value to have nothing to do with each other: relational database theory, and the study of non-locality and contextuality in the foundations of quantum mechanics.
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Improving The Performance of Big Data Databases
Kurdistan Journal of Applied Research, 2019 Real-time monitoring systems utilize two types of database, they are relational databases such as MySQL and non-relational databases such as MongoDB.
Nzar Abdulqadir Ali, Dashne Raouf Arif
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