'''''curr at [[관계대수relational_algebra]]'''''

= 내부조인 inner join =
내부조인inner_join

= 외부조인 outer join =
외부조인outer_join

left outer join
right outer join
full outer join

= 상호조인 cross join =
상호조인 cross join

= 자체조인 self join =
자체조인 self join

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Google:조인+join

Up: [[database]] > [[관계대수relational_algebra]]