Detail publikace

DATABASE MANIPULATIONS AS RELATION-TYPE OPERATIONS

MEZNÍK, I.

Originální název

DATABASE MANIPULATIONS AS RELATION-TYPE OPERATIONS

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

MEZNÍK, I.

Rok RIV

2015

Vydáno

1. 7. 2015

Nakladatel

European Scientific Institute

Místo

USA

ISSN

1857-7881

Periodikum

European Scientific Journal

Ročník

2015

Číslo

2

Stát

Portugalská republika

Strany od

249

Strany do

255

Strany počet

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"
}