Results 271 to 280 of about 331,173 (311)

Nursing Practice Environment in the Armed Forces: Scoping Review. [PDF]

Nurs Rep
Inácio M, Carvalho M, Paulino A, Costa P, Figueiredo AR, Nunes E, Cruchinho P, Lucas P.   +7 more
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Relational Databases with Ordered Relations

Logic Journal of the IGPL, 2005
Summary: The paper deals with expressing preferences in the framework of the relational data model. Preferences have usually a form of a partial ordering. Therefore the question arises how to provide the relational data model with such an ordering.
openaire   +1 more source

Formal Concept Analysis in Relational Database and Rough Relational Database

Fundamenta Informaticae, 2007
Since its foundation in the early 1980's, Formal ConceptAnalysis (FCA) has been used in many applications in data analysis, information retrieval, and knowledge discovery. In this paper, we suggest to exploit the framework of relational database model (RDM) and rough relational database model (RRDM) for Formal Concept Analysis.
Jiang, Feng, Sui, Yuefei, Cao, Cungen
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Independence in Database Relations

2013
We investigate the implication problem for independence atoms X⊥Y of disjoint attribute sets X and Y on database schemata. A relation satisfies X⊥Y if for every X-value and every Y-value that occurs in the relation there is some tuple in the relation in which the X-value occurs together with the Y-value.
Kontinen, J., Link, S., Väänänen, J.
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Physical database design for relational databases

ACM Transactions on Database Systems, 1988
This paper describes the concepts used in the implementation of DBDSGN, an experimental physical design tool for relational databases developed at the IBM San Jose Research Laboratory. Given a workload for System R (consisting of a set of SQL statements and their execution frequencies), DBDSGN suggests physical configurations for efficient performance.
S. Finkelstein, M. Schkolnick, P. Tiberio   +2 more
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Relational Databases

2021
Konstantinos Domdouzis, Peter Lake, Paul Crowther   +2 more
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Converting Temporal Relational Database into Temporal Object Relational Database

2017
This paper presents an approach for migrating existing temporal relational database (TRDB), into temporal object relational database (TORDB). This is done by enhancing a representation of a varying time database’s structure, in order to make hidden semantic explicit.
Soumiya Ain El Hayat, Mohamed Bahaj
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Relational Databases

The American Mathematical Monthly, 1983
Quentin F. Stout, Patricia A. Woodworth
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