Multiple choice technology databases

____________ is used to join a table to itself.

  1. Selfjoin

  2. Outerjoin

  3. innerjoin

  4. equijoin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A self-join joins a table to itself, typically using table aliases to treat it as two separate copies. This is used for hierarchical data (employee-manager) or comparing rows within the same table. Option A correctly names this join type.

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