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Question
Regarding the interchangeability of subqueries and joins, ________.A) a join can always be used as an alternative to a subquery, and a subquery can always be used as an alternative to a join
B) a join can sometimes be used as an alternative to a subquery, and a subquery can sometimes be used as an alternative to a join
C) a join can always be used as an alternative to a subquery, and a subquery can sometimes be used as an alternative to a join
D) a join can sometimes be used as an alternative to a subquery, and a subquery can always be used as an alternative to a join
Answer
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