单选题What is true regarding subqueries?()AThe inner query always sorts the results of the outer queryBThe outer query always sorts the results of the inner queryCThe outer query must return a value to the outer queryDThe inner query returns a value to the outer queryEThe inner query must always return a value or the outer query will give an error
单选题
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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