Results 61 to 70 of about 5,206,986 (370)
Genetic Algorithm for Relational Database Optimization in Reducing Query Execution Time
Scientific Journal of Informatics, 2018 The relational database is defined as the database by connecting between tables. Each table has a collection of information. The information is processed in the database by using queries, such as data retrieval, data storage, and data conversion.
Kukuh Triyuliarno Hidayat +2 more
doaj +1 more source
Adequacy of Decompositions of Relational Databases
Journal of Computer and System Sciences, 1980 AbstractWe consider conditions that have appeared in the literature with the purpose of defining a “good” decomposition of a relation scheme. We show that these notions are equivalent in the case that all constraints in the database are functional dependencies. This result solves an open problem of Rissanen.
Fereidoon Sadri +3 more
openaire +2 more sources
Characteristics of the Kelch domain containing (KLHDC) subfamily and relationships with diseases
FEBS Letters, EarlyView.The Kelch protein superfamily includes 63 members, with the KLHDC subfamily having 10 proteins. While their functions are not fully understood, recent advances in KLHDC2's structure and role in protein degradation have highlighted its potential for drug development, especially in PROTAC therapies.
Courtney Pilcher +6 more
wiley +1 more source
Incremental View Maintenance for Deductive Graph Databases Using Generalized Discrimination Networks [PDF]
EPTCS 231, 2016, pp. 57-71, 2016 Nowadays, graph databases are employed when relationships between entities are in the scope of database queries to avoid performance-critical join operations of relational databases. Graph queries are used to query and modify graphs stored in graph databases.
arxiv +1 more source
Fuzzy relations and fuzzy relational databases
Computers & Mathematics with Applications, 1991 AbstractThis paper deals with the connections existing between fuzzy set theory and fuzzy relational databases. Our new result dealing with fuzzy relations is how to calculate the greatest lower bound (glb) of two similarity relations. Our main contributions in fuzzy relational databases are establishing from fuzzy set theory what a fuzzy relational ...
Austin Melton, Sujeet Shenoi
openaire +2 more sources
Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones
FEBS Letters, EarlyView.Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley +1 more source
A Systematic Method for On-The-Fly Denormalization of Relational Databases [PDF]
arXiv, 2020 Normalized relational databases are a common method for storing data, but pulling out usable denormalized data for consumption generally requires either direct access to the source data or creation of an appropriate view or table by a database administrator.
arxiv
Extensible Database Simulator for Fast Prototyping In-Database Algorithms [PDF]
arXiv, 2022 With the rapid increasing of data scale, in-database analytics and learning has become one of the most studied topics in data science community, because of its significance on reducing the gap between the management and the analytics of data. By extending the capability of database on analytics and learning, data scientists can save much time on ...
arxiv
FEBS Letters, EarlyView.The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva +1 more
wiley +1 more source
ON THE DENSE FAMILIES IN THE RELATIONAL DATAMODEL
ASEAN Journal on Science and Technology for Development, 2017 In this paper, dense families of relation schemes are introduced. We characterize minimal keys of relation schemes in terms of dense families. Note that, the dense families of database relations were introduced by Jarvinen [6].
Vu Duc Thy, Nguyen Hoang Son
doaj +1 more source