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Question ID 9059

Exhibit

Examine the data in the EMPLOYEES and DEPARTMENTS tables.
You want to retrieve all employees' last names, along with their manager's last names and their department
names. Which query would you use?

Option A

SELECT last_name, manager_id, department_name
FROM employees e
FULL OUTER JOIN department d ON (e.department_id = d.department_id);

Option B

SELECT e.last_name, m.last_name, department_name FROM employees e
LEFT OUTER JOIN employees m on ( e.managaer_id = m.employee_id) LEFT OUTER JOIN department d
ON (e.department_id = d.department_id);

Option C

SELECT e.last_name, m.last_name, department_name
FROM employees e
RIGT OUTER JOIN employees m on ( e.manager_id = m.employee_id) FULL OUTER JOIN department d
ON (e.department_id = d.department_id);

Option D

SELECT e.last_name, m.last_name, department_name
FROM employees e
LEFT OUTER JOIN employees m on ( e.manager_id = m.employee_id) RIGT OUTER JOIN department d
ON (e.department_id = d.department_id);

Option E

SELECT e.last_name, m.last_name, department_name
FROM employees e
RIGHT OUTER JOIN employees m on ( e.manager_id = m.employee_id) RIGHT OUTER JOIN
departments d ON (e.department_id = d.department_id)

Option F

SELECT last_name, manager_id, department_name
FROM employees e
JOIN department d ON (e.department_id = d.department_id);

Correct Answer B
Explanation


Question ID 9060

Exhibit

The COMMISSION column shows the monthly commission earned by the employee. Which two tasks would
require subqueries or joins in order to be performed in a single step? (Choose two.)

Option A

listing the employees who earn the same amount of commission as employee 3

Option B

finding the total commission earned by the employees in department 10

Option C

finding the number of employees who earn a commission that is higher than the average commission of the
company

Option D

listing the departments whose average commission is more that 600

Option E

listing the employees who do not earn commission and who are working for department 20 in descending
order of the employee ID

Option F

listing the employees whose annual commission is more than 6000

Correct Answer AC
Explanation

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