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Which of the following is not outer join?

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in Database Management by (119k points)
Which of the following is not outer join?

(a) Left outer join

(b) Right outer join

(c) Full outer join

(d) All of the mentioned

This question was addressed to me in examination.

I'd like to ask this question from Relational Algebra topic in section Relational Algebra of Database Management

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Correct option is (d) All of the mentioned

Easy explanation - The FULL OUTER JOIN keyword combines the result of both LEFT and RIGHT joins.

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