Results 81 to 90 of about 25,681 (265)

Derivation of constraints and database relations

open access: yes, 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
David A. Cohen   +2 more
openaire   +2 more sources

Unlocking Proenvironmental Behaviour: A Scoping Review of Green Human Resource Management and Organisational Citizenship Behaviour for the Environment Through the Ability–Motivation–Opportunity Lens

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Despite accelerating interest in green human resource management (GHRM) and its connection to organisational citizenship behaviour for the environment (OCBE), the field remains theoretically fragmented. This scoping review synthesises 12 empirical studies anchored in the ability–motivation–opportunity (AMO) framework.
Mamdoh M. Algethami, Nadine Campbell
wiley   +1 more source

Embedding Relational Databases in Object Ontologies: Implementation Issues

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2014
In this paper the problem of database embedding in logical knowledge management environment is considered. The approaches to the implementation of database embedding in ontologies are established through their modeling based on object theories.
I.A. Kazakov   +2 more
doaj  

Hybrid Data Storage Architecture: A Novel Design Approach Based on Microservices Architecture

open access: yesIEEE Access
Due to the diverse storage and performance requirements of modern data-driven environments, choosing between relational and non-relational database systems is a complex decision, as each type offers distinct advantages and limitations depending on the ...
K. Ahaidous   +4 more
doaj   +1 more source

Takeover Vulnerability and the Discipline of ESG Overinvestment

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT While takeovers serve a disciplinary role by replacing inefficient managers, the threat of takeovers may compel firms to divert attention from Environmental, Social and Governance (ESG) efforts as a strategic response to external pressure, especially when such firms are already overinvesting in ESG.
Abongeh Tunyi   +2 more
wiley   +1 more source

The performance of relational and object-relational SQL queries when using Oracle

open access: yesIngeniería e Investigación, 2005
En este artIculo se muestra por medio de consultas especIficas el comportamiento del modelo relacional y obleto- relacional, y se presenta así un estudio en el que se mide y a la vez se compara la eficiencia (tiempo, uso de recursos del sistema) de ...
Francisco Javier Moreno Arboleda   +2 more
doaj  

DATABASE RELATIONS AND BORLANDDELPHI

open access: yes, 2019
Database is a set of data that has been arranged in such a way with certain provisions or rules that are interconnected so that it makes it easier for users to manage it, and Delphi provides complete facilities for processing databases. Various database formats.
openaire   +3 more sources

Empowering Circular Startups: Unveiling the Blueprint for Circular Business Models

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Circular startups are increasingly recognized as key drivers in the transition toward a circular economy. Yet the business models (BMs) through which these startups operationalize circularity remain poorly understood, limiting the ability of entrepreneurial ecosystem actors to offer effective support.
Ann‐Sophie Finner   +2 more
wiley   +1 more source

Lossless Join Decomposition for Extended Possibility-Based Fuzzy Relational Databases

open access: yesJournal of Applied Mathematics, 2014
Functional dependency is the basis of database normalization. Various types of fuzzy functional dependencies have been proposed for fuzzy relational database and applied to the process of database normalization. However, the problem of achieving lossless
Julie Yu-Chih Liu
doaj   +1 more source

Relational Databases and Bell’s Theorem [PDF]

open access: yes, 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.
openaire   +2 more sources

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