Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Relational_algebra> ?p ?o }
- Relational_algebra abstract "Relational algebra, first described by E.F. Codd while at IBM, is a family of algebra with a well-founded semantics used for modelling the data stored in relational databases, and defining queries on it.The main application of relational algebra is providing a theoretical foundation for relational databases, particularly query languages for such databases, chief among which is SQL.".
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- Relational_algebra wikiPageWikiLinkText "Equijoin".
- Relational_algebra wikiPageWikiLinkText "Relational algebra".
- Relational_algebra wikiPageWikiLinkText "Relational algebra#Antijoin (▷)".
- Relational_algebra wikiPageWikiLinkText "Relational algebra#Full outer join".