Publication detail

DATABASE MANIPULATIONS AS RELATION-TYPE OPERATIONS

MEZNÍK, I.

Original Title

DATABASE MANIPULATIONS AS RELATION-TYPE OPERATIONS

Type

journal article - other

Language

English

Original Abstract

The paper points to highly useful symbiosis of manipulations in databases and operation on relation-type mathematical structures. The common context of n-ary relation tools and database structures means is discussed and the correspondence between n-ary relation operations and standard database constructions is examined. Also some relevant mathematical problems are pointed out. Relationships among elements of a number of sets often arise in real-life events and lead to investigation of important properties of discrete algebraic structures. For instance, there is a relationship among the name of the passenger, the name of the aircraft carrier, flight number, departure point, destination, departure time, and arrival time. Such relationships may be expressed in terms of n-ary relations.

Keywords

N-ary relation, relation data model, projection, selection, join, E-join, θ-join

Authors

MEZNÍK, I.

RIV year

2015

Released

1. 7. 2015

Publisher

European Scientific Institute

Location

USA

ISBN

1857-7881

Periodical

European Scientific Journal

Year of study

2015

Number

2

State

Portuguese Republic

Pages from

249

Pages to

255

Pages count

7

BibTex

@article{BUT115661,
  author="Ivan {Mezník}",
  title="DATABASE MANIPULATIONS AS RELATION-TYPE OPERATIONS",
  journal="European Scientific Journal",
  year="2015",
  volume="2015",
  number="2",
  pages="249--255",
  issn="1857-7881"
}