Results 91 to 100 of about 663,961 (238)

Application of the Spatial Database for Shoreline Change Analysis and Visualisation: Example from the Western Polish Coast, Southern Baltic Sea

open access: yesQuaestiones Geographicae, 2018
The main aim of the study was to introduce a spatial database application for the estimation of changes in shoreline position. The open-source PostgreSQL database system with the PostGIS spatial extension was used as the data store for digitalised ...
Kostecki Robert
doaj   +1 more source

A new Watermarking Technique for Secure Database [PDF]

open access: yesInternational Journal of Computer Engineering & Applications, Vol. I, No. I, 2013, 2013
Digital multimedia watermarking technology was suggested in the last decade to embed copyright information in digital objects such images, audio and video. However, the increasing use of relational database systems in many real-life applications created an ever increasing need for watermarking database systems.
arxiv  

A Comparative Analysis of Materialized Views Selection and Concurrency Control Mechanisms in NoSQL Databases [PDF]

open access: yesarXiv, 2017
Increasing resource demands require relational databases to scale. While relational databases are well suited for vertical scaling, specialized hardware can be expensive. Conversely, emerging NewSQL and NoSQL data stores are designed to scale horizontally.
arxiv  

Discharge after hip fracture surgery in relation to mobilisation timing by patient characteristics: linked secondary analysis of the UK National Hip Fracture Database [PDF]

open access: gold, 2021
Katie Jane Sheehan   +6 more
openalex   +1 more source

An approach for testing the primeness of attributes in relational schemas [PDF]

open access: yesComputer Science Journal of Moldova, 2009
In this paper there is proposed a method of partition the attributes of relation scheme in equivalence classes and in nonredundant equivalence classes. Several properties of these equivalence classes are proved. Their properties serve as the basis for an
Cotelea Vitalie
doaj  

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