Results 81 to 90 of about 53,688 (267)
Системи управління реляційними базами даних і сама мова SQL не мають жодних вбудованих механізмів для зберігання та управління ієрархічними структурами. Існує кілька різних способів представлення дерев в реляційних базах даних. В роботі розглянуто метод
Возняк, Микола Андрійович +2 more
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Query Completion for Small-Scale Distributed Databases in PostgreSQL and MongoDB [PDF]
Relational/SQL and document/JSON data stores are competing but complementary technologies in OLAP (On-Line Analytical Processing) systems. Whereas traditional approaches for performance comparison use query execution time, this paper compares two ...
Marin FOTACHE +3 more
doaj
Data Management: 25 Years of Forecasts
In October 2013, the eighth meeting of researchers in the field of databases was held. The first such meeting took place in February 1988, so that 25 years passed between them.
S. D. Kuznetsov
doaj +1 more source
A Mixed Covalent–Supramolecular Interpenetrated Copper–Phosphonate Network
Zigzag Cu–bisphosphonate double strands are connected by dipyridyl linkers to two‐dimensional layers which are organized via hydrogen bonds into a three‐dimensional, two‐fold interpenetrated hydrogen‐bonded framework. A novel copper‐based coordination network [Cu(1,4‐DPB)(H2NBP)] was synthesized via a hydrothermal process using 1,4‐di(pyridin‐4‐yl ...
Marcus N. A. Fetzer +3 more
wiley +1 more source
SQL Hacks. Tips and tools for digging into your data.
...SQL Hacks reveals the secrets that database experts use to dig through their data and get the answers they need. It includes 100 hacks for sorting, sifting, shuffling, and pushing the limits of traditional SQL.
Russell, Gordon, Cumming, Andrew
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A SURVEY OF MODERN SOLUTIONS FOR DATABASES SCALABILITY AND PERFORMANCE CHALLENGES [PDF]
The exponential growth of web and mobile applications and the adoption of cloud services have exposed the limitations of traditional SQL databases in managing the Big Data triad: Volume, Velocity, and Variety.
BABUCEA ANA-GABRIELA
doaj
The Digital Edition of the Becerro Galicano de San Millán de la Cogolla
This is a review of the digital edition of the Becerro Galicano of San Millán de la Cogolla, one of the oldest medieval cartularies in Spain and one of the most important sources for the study of Christian Spain between the 8th and 12th century.
Francisco Javier Álvarez Carbajal
doaj +1 more source
Review on enhancing clinical decision support system using machine learning
Abstract Clinical decision‐making is a complex patient‐centred process. For an informed clinical decision, the input data is very thorough ranging from detailed family history, environmental history, social history, health‐risk assessments, and prior relevant medical cases.
Anum Masood +4 more
wiley +1 more source
Abstract Graph neural networks (GNNs) have revolutionised the processing of information by facilitating the transmission of messages between graph nodes. Graph neural networks operate on graph‐structured data, which makes them suitable for a wide variety of computer vision problems, such as link prediction, node classification, and graph classification.
Amit Sharma +4 more
wiley +1 more source
A Distributed Scientific Data Archive Using the Web, XML and SQL/MED
We have developed a web-based architecture and user interface for fast storage, searching and retrieval of large, distributed, files resulting from scientific simulations.
Nicole, Denis A +3 more
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