Results 21 to 30 of about 2,192,466 (82)

KNOWLEDGE MODELING FOR A RELATIONAL DATABASE IN ONTOLOGY WEB LANGUAGE (OWL)

open access: yesTạp chí Khoa học Đại học Đà Lạt, 2017
This paper presents a knowledge modeling method by Ontology Web Language (OWL) for a relational database. The proposed method contains the rules for transforming data in a relational database into Ontology and Axioms for supplementing meaning of a ...
Huỳnh Tuấn Anh
doaj   +1 more source

Semantic query in a relational database using a local ontology construction

open access: yesSouth African Journal of Science, 2012
Semantic Web refers to a Web of linked data in which data can be shared and reused, allowing more uses than the traditional ‘Web of documents’. However, most of the information on the Web is stored in relational databases and such databases cannot be ...
Saeed M. Sedighi, Reza Javidan
doaj   +3 more sources

AMANDA: A Middleware for Automatic Migration between Different Database Paradigms

open access: yesApplied Sciences, 2022
In a world rich in interconnected and complex data, the non-relational database paradigm can better handle large volumes of data at high speed with a scale-out architecture, which are two essential requirements for large industries and world-class ...
Jordan S. Queiroz   +7 more
doaj   +1 more source

Temporal RDF Modeling Based on Relational Database [PDF]

open access: yesJisuanji kexue, 2022
With the increase of temporal data,the concept of temporal knowledge graph is popularized,and how to represent temporal knowledge graph efficiently has become an important research direction.Although resource description framework(RDF) is widely used in ...
HAN Xiao, ZHANG Zhe-qing, YAN Li
doaj   +1 more source

Examining database persistence of ISO/EN 13606 standardized electronic health record extracts: relational vs. NoSQL approaches

open access: yesBMC Medical Informatics and Decision Making, 2017
Background The objective of this research is to compare the relational and non-relational (NoSQL) database systems approaches in order to store, recover, query and persist standardized medical information in the form of ISO/EN 13606 normalized Electronic
Ricardo Sánchez-de-Madariaga   +6 more
doaj   +1 more source

THE OBJECT-ORIENTED DATABASES APPROACH REPRESENT A TYPICAL SOLUTION FOR INTEGRATED APPLICATIONS

open access: yesJournal of Kufa for Mathematics and Computer, 2010
numbers, short text, and dates. With the advent of powerful and affordable multimedia computers, people increasingly need databases to store more complex objects. Typical objects include graphics, sound, and video clips.
Yahya Mahdi Hadi Al-mayali
doaj   +1 more source

A Novel Automatic Relational Database Normalization Method

open access: yesActa Informatica Pragensia, 2022
The increase in data diversity and the fact that database design is a difficult process make it practically impossible to design a unique database schema for all datasets encountered.
Emre Akadal, Mehmet Hakan Satman
doaj   +1 more source

The relational database system of KM3NeT

open access: yesEPJ Web of Conferences, 2016
The KM3NeT Collaboration is building a new generation of neutrino telescopes in the Mediterranean Sea. For these telescopes, a relational database is designed and implemented for several purposes, such as the centralised management of accounts, the ...
Albert Arnauld, Bozza Cristiano
doaj   +1 more source

Oracle 19c, SQL Server 2019, Postgresql 12 and MySQL 8 database systems comparison

open access: yesJournal of Computer Sciences Institute, 2020
This article presents a comparative analysis of four popular database technologies. Commercial Oracle Database and SQL Server systems are compared with open source database management systems: PostgreSQL and MySQL.
Arkadiusz Solarz, Tomasz Szymczyk
doaj   +1 more source

Proposed Framework which Uses Object Oriented Principles in Relational Systems: Structure and Formating (Part 2) [PDF]

open access: yesInformatică economică, 2006
Our approach tries to overcome the limitations of so called “flat nature” of relational systems, in the actual context of actual relational database theories, database systems technologies and object oriented methodologies by proposing an MDA framework ...
Catalin STRIMBEI
doaj  

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