Results 11 to 20 of about 202,182 (283)

Object-oriented querying of existing relational databases [PDF]

open access: yes, 1993
In this paper, we present algorithms which allow an object-oriented querying of existing relational databases. Our goal is to provide an improved query interface for relational systems with better query facilities than SQL.
Keim, Daniel A.   +2 more
core   +3 more sources

Towards an automatic data value analysis method for relational databases [PDF]

open access: yes, 2020
Data is becoming one of the world’s most valuable resources and it is suggested that those who own the data will own the future. However, despite data being an important asset, data owners struggle to assess its value.
Bendechache, Malika   +2 more
core   +2 more sources

Computing Multi-Relational Sufficient Statistics for Large Databases [PDF]

open access: yes, 2014
Databases contain information about which relationships do and do not hold among entities. To make this information accessible for statistical analysis requires computing sufficient statistics that combine information from different database tables. Such
Qian, Zhensong   +2 more
core   +1 more source

NOSQL design for analytical workloads: Variability matters [PDF]

open access: yes, 2016
Big Data has recently gained popularity and has strongly questioned relational databases as universal storage systems, especially in the presence of analytical workloads.
Abelló Gamazo, Alberto   +2 more
core   +1 more source

Distributed Model-Based Diagnosis using Object-Relational Constraint Databases [PDF]

open access: yes, 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
core   +2 more sources

On the selection of secondary indices in relational databases [PDF]

open access: yes, 1993
An important problem in the physical design of databases is the selection of secondary indices. In general, this problem cannot be solved in an optimal way due to the complexity of the selection process.
Blanken, Henk M.   +2 more
core   +6 more sources

Comparative analysis of selected databases on the example of a proprietary web application

open access: yesJournal of Computer Sciences Institute, 2023
Database performance is one of the most important factors affecting the usability of the system. Therefore, the authors of the article decided to examine 3 popular database systems: MySQL, MS SQL and PostgreSQL, analyzing their performance.
Łukasz Przychodzień   +2 more
doaj   +1 more source

Prioritized Repairing and Consistent Query Answering in Relational Databases [PDF]

open access: yes, 2011
A consistent query answer in an inconsistent database is an answer obtained in every (minimal) repair. The repairs are obtained by resolving all conflicts in all possible ways.
A Fuxman   +14 more
core   +7 more sources

Considerations on NoSQL Databases [PDF]

open access: yesRevista Română de Informatică și Automatică, 2018
This paper aims to present some considerations on non-relational databases (called NoSQL) that are increasingly being used by applications (especially the Web, such as Youtube, Amazon, Google and Facebook) that both have to store an impressive volume ...
Dragoş NICOLAU
doaj  

Performance analysis of relational databases MySQL, PostgreSQL and Oracle using Doctrine libraries

open access: yesJournal of Computer Sciences Institute, 2022
In modern applications, databases perform a very important function but the choice of a database system and additional libraries may affect the speed of the operations.
Marcin Choina   +1 more
doaj   +1 more source

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