Question at position 31 Which of the following operator CAN NOT be used with a multiple-row subquery?NOT EXISTANYNOT INBETWEEN

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Question at position 31 asks which operator cannot be used with a multiple-row subquery. Here are considerations for each option:

Option NOT EXIST
While the common syntax is NOT EXISTS (the negation of EXISTS), this form is indeed used with subqueries that return multiple rows to test for the non-existence of any row matching the condition. Therefore, NOT EXISTS can be used with a multiple-row subquery, so this option is not the correct choice for a cannot-use scenario.

Option ANY
ANY is an operator that compares a value to any value produced by a subquery. When the subquery returns multiple rows, ANY is perfectly valid and frequently used in conjunction with operators like =, >, <, etc. The presence of multiple rows does not violate syntax, so this option is also usable with a multiple-row subquery.

Option NOT IN
NOT IN is a valid way to compare a value against a set of values produced by a subquery. It is commonly used when the subquery returns multiple rows. The only caveat to be mindful of is handling NULLs (NOT IN can yield UNKNOWN if the subquery returns NULLs), but it remains technically usable with multiple-row subqueries. Hence, NOT IN is not the correct choice for the cannot-use scenario.

Option BETWEEN
BETWEEN is a range predicate that expects a single value to be checked against a lower and upper bound (e.g., x BETWEEN low AND high). When you use a subquery on the right side, BETWEEN requires the subquery to return a single scalar value for proper comparison. If the subquery returns multiple rows, the statement becomes invalid because BETWEEN cannot compare to a set of values. In practice, BETWEEN cannot be reliably used with a multiple-row subquery, making this the correct choice for the operator that CAN NOT be used in that situation.

In summary, among the provided options, BETWEEN cannot be used with a multiple-row subquery in a way that yields a valid, deterministic result, while NOT EXISTS, ANY, and NOT IN can be used with subqueries returning multiple rows (with some caveats for NULLs in NOT IN).

Question at position 31 Which of the following operator CAN NOT be used with a multiple-row subquery?NOT EXISTANYNOT INBETWEEN

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