What is true regarding subquerie

题目

What is true regarding subqueries?()

  • A、The inner query always sorts the results of the outer query
  • B、The outer query always sorts the results of the inner query
  • C、The outer query must return a value to the outer query
  • D、The inner query returns a value to the outer query
  • E、The inner query must always return a value or the outer query will give an error
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