Results 21 to 30 of about 4,465,122 (351)
Optimization of Analytical Queries in Heterogeneous Systems
Современные информационные технологии и IT-образование, 2021 According to International Data Corporation (IDC) reports, humankind produced more than 64 zettabytes of data in 2020. Global data creation and replication are expected to grow 23% annually between 2020 and 2025.
Petr Kurapov, Areg Melik-Adamyan
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Query Optimization in an OODBMS [PDF]
, 1993 It is clearly crucial for the success of object—oriented databases to find efficient implementations that improve on the performance of relational systems, rather than being powerful in terms of modeling and features, but just too slow to be used. This paper describes the mapping of COCOON to DASDBS, a nested relational database kernel system, as an ...
Rich, Christian, Scholl, Marc H.
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Semantic Optimization of Conjunctive Queries [PDF]
Journal of the ACM, 2020 This work deals with the problem of semantic optimization of the central class of conjunctive queries (CQs). Since CQ evaluation is NP-complete, a long line of research has focussed on identifying fragments of CQs that can be efficiently evaluated.
Barcelo P. +3 more
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Query Optimization in Teradata Warehouse
Journal of Telecommunications and Information Technology, 2023 The time necessary for data processing is becoming shorter and shorter nowadays. This thesis presents a definition of the active data warehousing (ADW) paradigm.
Agnieszka Gosk
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Evolutionary Algorithms for Query Op-timization in Distributed Database Sys-tems: A review
Advances in Distributed Computing and Artificial Intelligence Journal, 2018 Evolutionary Algorithms are bio-inspired optimization problem-solving approaches that exploit principles of biological evolution. , such as natural selection and genetic inheritance.
Zulfiqar ALI +2 more
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Analysis of the possibilities of optimizing SQL queries
Journal of Computer Sciences Institute, 2021 Most of today's web applications run on relational database systems. Communication with them is possible through statements written in Structured Query Language (SQL).
Piotr Rymarski, Grzegorz Kozieł
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Apache Calcite: A Foundational Framework for Optimized Query Processing Over Heterogeneous Data Sources [PDF]
, 2018 Apache Calcite is a foundational software framework that provides query processing, optimization, and query language support to many popular open-source data processing systems such as Apache Hive, Apache Storm, Apache Flink, Druid, and MapD.
Begoli, Edmon +4 more
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Algebraic optimization of recursive queries [PDF]
, 1992 Over the past few years, much attention has been paid to deductive databases. They offer a logic-based interface, and allow formulation of complex recursive queries.
Apers, Peter M.G. +2 more
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On the Effectiveness of the Minimization Approach to the Query Optimization
Моделирование и анализ информационных систем, 2016 A standard problem of DBMSs usage is a lack of efficiency and high cost of the access to the stored data. The acceptable level of system performance may be achieved by query optimization technics that determine the most efficient way to execute a given ...
N. Mendkovich
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Survey on AI Powered New Techniques for Query Processing and Optimization
Jisuanji kexue yu tansuo, 2020 As one of the most challenging problems in data management, query processing and optimization are always widely concerned by researchers. However, it is very difficult for traditional techniques to meet the diverse requirements of modern database system ...
SONG Yumeng, GU Yu, LI Fangfang, YU Ge
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