Oracle
1Z0-071 · Question #123
Which three statements are true regarding subqueries? (Choose three.)
The correct answer is A. The ORDER BY Clause can be used in a subquery. B. A subquery can be used in the FROM clause of a SELECT statement. D. A subquery can be placed in a WHERE clause, a GROUP BY clause, or a HAVING clause. See the full explanation below for the reasoning.
Question
Which three statements are true regarding subqueries? (Choose three.)
Options
- AThe ORDER BY Clause can be used in a subquery.
- BA subquery can be used in the FROM clause of a SELECT statement.
- CIf a subquery returns NULL, the main query may still return rows.
- DA subquery can be placed in a WHERE clause, a GROUP BY clause, or a HAVING clause.
- ELogical operators, such as AND, OR and NOT, cannot be used in the WHERE clause of a
How the community answered
(17 responses)- A71% (12)
- C18% (3)
- E12% (2)
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