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  1. The operators used when a subquery returns multiple rows to be evaluated in comparison to the outer query are _____________.
    1. LEFT JOIN and RIGHT JOIN
    2. OUTER JOIN and INNER JOIN
    3. EXISTS and NOT EXISTS
    4. IN and NOT IN
    5. None of these
Correct Option: D

When there is a need to evaluate multiple rows in comparison to the outer query, the ‘IN’ and ‘NOT IN’ operators are used. They are used for testing whether a comparison value is present in a set of values.


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