【多选题】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? ()
A.
listing the employees who earn the same amount of commission as employee 3
B.
finding the total commission earned by the employees in department 10
C.
finding the number of employees who earn a commission that is higher than the average commission of the company
D.
listing the departments whose average commission is more that 600
E.
listing the employees who do not earn commission and who are working for department 20 in descending order of the employee ID
F.
listing the employees whose annual commission is more than 6000
【单选题】An analysis of workplace trends shows that employee perks, a reliable indicator of job market strength, are beginning to make a comeback. While not as Extravagant as those offered in the late 1990s, c...
A.
a payment or profit received in addition to a regular wage or salary.
B.
release of entertainment facilities such as game rooms or luxury cars.
C.
the balance between the work and balance of employees.
D.
the opportunities to improve one's expertise in his work.