@prefix azonOnto: <http://id.e-science.pl/ontologies/azonOnto#> .
@prefix collection: <http://id.e-science.pl/vocab/collection/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix kv: <http://id.e-science.pl/vocab/kv/> .
@prefix person: <http://id.e-science.pl/vocab/person/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
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@prefix unit: <http://id.e-science.pl/vocab/unit/> .
@prefix xml: <http://www.w3.org/XML/1998/namespace> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

kv:c92898 a skos:Concept ;
    rdfs:seeAlso "https://en.wikipedia.org/wiki/Relational_database"@en ;
    skos:definition "A digital database based on the relational model of data, as proposed by E. F. Codd in 1970. A software system used to maintain relational databases is a relational database management system (RDBMS). Virtually all relational database systems use SQL (Structured Query Language) for querying and maintaining the database."@en ;
    skos:inScheme kv:keywordsVocabulary ;
    skos:prefLabel "relational databases"@pl .

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