Results 21 to 30 of about 331,173 (311)
BMC 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
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A Trichotomy in the Complexity of Counting Answers to Conjunctive Queries [PDF]
, 2015 Conjunctive queries are basic and heavily studied database queries; in relational algebra, they are the select-project-join queries. In this article, we study the fundamental problem of counting, given a conjunctive query and a relational database, the ...
Chen, Hubie, Mengel, Stefan
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THE OBJECT-ORIENTED DATABASES APPROACH REPRESENT A TYPICAL SOLUTION FOR INTEGRATED APPLICATIONS
Journal 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
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Comparing the performance of object and object relational database systems on objects of varying complexity [PDF]
, 2012 This is the first published work to compare the performance of object and object relational database systems based on the object's complexity. The findings of this research show that the performance of object and object relational database systems are ...
Bryant, CH, Kalantari, R
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Oracle 19c, SQL Server 2019, Postgresql 12 and MySQL 8 database systems comparison
Journal 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
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Predicting Customers Churn in a Relational Database [PDF]
Informatică economică, 2014 This paper explores how two main classical classification models work and generate predictions through a commercial solution of relational database management system (Microsoft SQL Server 2012). The aim of the paper is to accurately predict churn among a
Catalin CIMPOERU, Anca Ioana ANDREESCU
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The relational database system of KM3NeT
EPJ 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
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Distributed Model-Based Diagnosis using Object-Relational Constraint Databases [PDF]
, 2006 This work presents a proposal to diagnose distributed systems utilizing model-based diagnosis using distributed databases. In order to improve aspects as versatility, persistence, easy composition and efficiency in the diagnosis process we use an ...
Gómez López, María Teresa +3 more
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Structuring, Recording, and Analyzing Historical Networks in the China Biographical Database
Journal of Historical Network Research, 2021 The China Biographical Database (CBDB) is a relational database of over 450,000 individuals from pre-modern Chinese history. CBDB is distinctive as a prosopographical database in that it allows users to generate kinship and social networks for ...
Michael Fuller, Hongsu Wang
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Semantic query in a relational database using a local ontology construction (Retracted)
South 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 Sedighi, Reza Javidan
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