The operators used when a subquery returns multiple rows to be evaluated in comparison to the outer query are _____________(a) IN and NOT IN(b) EXISTS and NOT EXISTS(c) OUTER JOIN and INNER JOIN(d) LEFT JOIN and RIGHT JOINI have been asked this question during an interview for a job.This question is from Managing MySQL User Accounts in section General MySQL Administration of MySQL

The operators used when a subquery returns multiple rows to be evaluat

1.	The operators used when a subquery returns multiple rows to be evaluated in comparison to the outer query are _____________(a) IN and NOT IN(b) EXISTS and NOT EXISTS(c) OUTER JOIN and INNER JOIN(d) LEFT JOIN and RIGHT JOINI have been asked this question during an interview for a job.This question is from Managing MySQL User Accounts in section General MySQL Administration of MySQL
Answer» Right option is (a) IN and NOT IN To explain I would say: 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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