A natural join over two relations R and S denoted by RxS over a set of attributes common to both R and S - Removes "extra copies" of the join attributes - attributes must have the same name in both relations

Relational algebra Flashcards by Njabulo Dlamini

Equijoin

Only contains the equality operator

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Natural join

A natural join over two relations R and S denoted by R|x|S over a set of attributes common to both R and S

Removes “extra copies” of the join attributes
attributes must have the same name in both relations

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Relational algebra Flashcards

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