Answer:
Employers are allowed to check the number of keystrokes that word processors enter during the day.
Explanation:
An employer is authorized to monitor the activity of its employee when:
- The employee authorizes it.
- The employer owns the system to be used.
- Surveillance is necessary for a strictly professional purpose.
By analyzing the keys pressed per day, the employer can determine the performance provided by its employees, and if they use the company's resources, for non-work purposes.
Program or algorithm
They are synonymy's
Answer:
positive
Explanation:
it shows good customer service
For the view of Exercise 4.18, explain why the database system would not allow a tuple to be inserted into the database through this view.
For reference
For the database of Figure 4.12, write a query to find the ID of each employee with no manager. Note that an employee may simply have no manager listed or may have a null manager. Write your query using an outer join and then write it again using no outer join at all.
OUTER JOIN
select e.ID from employee e left outer join manages m on e.ID = m.ID
where m.manager_id is null;
NO OUTER
select e.ID from employee e where e.ID not in (select m.ID from manages m) or e.ID in (select m.ID from manages m where m.manager_id is null);
MYbe show a picture next time so we can see what the problem is about ?
