Q. View the Exhibit and examine the structure of the EMPLOYEES and DEPARTMENTS tables.
Which SET operator would you use in the blank space in the following SQL statement to list the departments where all the employees have managers?
SELECT department_id FROM departments ____ SELECT department_id FROM employees WHERE manager_id IS NULL;
✅ Correct Answer: (D)
The statement would not execute because the ORDER BY clause should appear only at the end of the SQL statement, that is, in the last SELECT statement.