Results 1 to 10 of about 309,755 (267)
Database independent Migration of Objects into an Object-Relational Database [PDF]
IEEE Students Conference, ISCON '02. Proceedings., 2002 This paper reports on the CERN-based WISDOM project which is studying the serialisation and deserialisation of data to/from an object database (objectivity) and ORACLE 9i.Comment: 26 pages, 18 figures; CMS CERN Conference Report ...
Ali, Arshad +4 more
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RELATIONAL ASPECTS OF RELATIONAL DATABASE DEPENDENCIES [PDF]
Bulletin of informatics and cybernetics, 2000 Summary: This paper presents a relational treatment of inference rules for functional and multivalued dependencies in relational databases, to show the soundness and the completeness of the inference rules in Dedekind categories, which also cover the fuzzy case.
Hitomi Okuma, Yasuo Kawahara
openalex +4 more sources
A multi-set extended relational algebra: a formal approach to a practical issue [PDF]
, 1993 The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples an a relation. Many database languages and systems do require multi-set semantics though, either because of functional requirements or because of the high costs
de By, R.A. +2 more
core +27 more sources
Converting Relational Databases into Object-relational Databases. [PDF]
The Journal of Object Technology, 2010 This paper proposes an approach for migrating existing Relational DataBases (RDBs) into Object-Relational DataBases (ORDBs). The approach is superior to existing proposals as it can generate not only the target schema but also the data instances. The solution takes an existing RDB as input, enriches its metadata representation with required semantics ...
M. Akhtar Ali +2 more
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Visualization of Relational Databases
Digital Platform: Information Technologies in Sociocultural Sphere, 2022 The purpose of the article is to demonstrate the relational databases visualization algorithm using MS Power BI software products in MS Excel. The research methodology is cloud information processing technologies. The novelty of the study is the implementation of the relational database visualization algorithm using MS Power BI software products in MS ...
Bulyha Kostiantin +2 more
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Data Mining Using Relational Database Management Systems [PDF]
, 2006 Software packages providing a whole set of data mining and machine learning algorithms are attractive because they allow experimentation with many kinds of algorithms in an easy setup.
Beibei, Zou +4 more
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Database Slicing on Relational Databases
Acta Cybernetica, 2014 Many software systems today use databases to permanently store their data. Testing, bug finding and migration are complex problems in the case of databases that contain many records. Here, our method can speed up these processes if we can select a smaller piece of the database (called a slice) that contains all of the records belonging to the slicing ...
David Tengeri, Ferenc Havasi
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Staircase Join: Teach a Relational DBMS to Watch its (Axis) Steps [PDF]
, 2003 Relational query processors derive much of their effectiveness from the awareness of specific table properties like sort order, size, or absence of duplicate tuples.
Grust, Torsten +2 more
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A Trichotomy in the Complexity of Counting Answers to Conjunctive Queries [PDF]
, 2015 Conjunctive queries are basic and heavily studied database queries; in relational algebra, they are the select-project-join queries. In this article, we study the fundamental problem of counting, given a conjunctive query and a relational database, the ...
Chen, Hubie, Mengel, Stefan
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Recommendations for Evolving Relational Databases [PDF]
, 2020 Relational databases play a central role in many information systems. Their schemas contain structural and behavioral entity descriptions. Databases must continuously be adapted to new requirements of a world in constant change while: (1) relational database management systems (RDBMS) do not allow inconsistencies in the schema; (2) stored procedure ...
Delplanque, Julien +3 more
openaire +3 more sources