Computer Science · Database Management Systems
Which of the following syntax or usage scenarios regarding subqueries is invalid or results in a runtime error?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Referencing a column from the outer query inside a correlated subquery
- 2Using an aggregate function inside a subquery
- 3Using the IN operator with a subquery that returns a single column
- 4Using a subquery that returns multiple columns in a scalar comparison operator like '='✓
Correct answer
Using a subquery that returns multiple columns in a scalar comparison operator like '='
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