Oracle Database SQL 12c 1z0-071 Exam Practice Test 2

Question : 29 of 50

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A subquery is called a single-row subquery when _______.

There is only one subquery in the outer query and the inner query returns one or more values
The inner query returns a single value to the outer query.
The inner query uses an aggregating function and returns one or more values.
The inner query returns one or more values and the outer query returns a single value.

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