Answer:
background-color: (Color)
Explanation:
This is actually CSS coding, as you would code it like:
Body {
background-color: (Color)
}
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);
MS-DOS is a command-line operating system.
Therefore, the best answer is Command-line.
D. DoS. DoS is a way to potentially lag or even crash different types of servers ranging from as small as a simple website to bigger websites and video games servers.
