About selection

In database theory, relational algebra is a theory that uses algebraic structures for modeling data and defining queries on it with well founded semantics. The theory was introduced by Edgar F. Codd as part of his relational model of data in 1970.

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selection

in relational algebra, unary operation that denotes a subset of a relation

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Not who you're looking for? Others named selection: act of judging the merits of multiple options and selecting · "free selection before survey" of crown land in some Austral · linguistic term, the ability of predicates to determine the · list of items on which user operations will take place

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About selection

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Facts from Wikidata (CC0).