Um maybe a glitch? Refresh your browser might help.
the answer is D. without the right tags the content wont be accurately indexed
Answer:
<u> </u><u>Role of websites in internet</u>
- Websites give the online way to the business,it helps the business to grow and reach the higher audience. There was a time,at which there is no apps only HTML/CSS websites are there so it is a building step for reaching the audience.
- Time is a one of the major factors for growth in online sector, and websites provide a interface to use their resources and services at less time ,you don't have to go somewhere now you can order from anywhere and anytime. 24/7 hour services gives a boost to the websites.
- Some of the Applications are Very big but you can access them in very less amount of internet. Apps never replace websites.
- Most of the billionaires are the ones who builds there website like amazon, twitter etc. It is very important to have a website for the business
<u>Importance of internet in our daily life</u>
- Internet provides various resources and services which we need at every time like booking a cab,hotel,flight,trains and tutoring services . It consist a vast variety of information which is required at every moment .
- We really don't need any physical presence of someone to learn something , to understand or for asking it is enough up on internet. Things are changing as technology grows.
- For leisure time, it provide social sites to enjoy and there are much good options to ask the question of any subject.
- It also give option to promote business , it helps to reach to higher audience, many companies give services to us as there business. Digital marketing is also up there to promote on social sites.
Answer:
Explanation:
Transitive dependency
In this case, we have three fields, where field 2 depends on field 1, and field three depends on field 2.
For example:
Date of birth --> age --> vote
Partial dependency
It is a partial functional dependency if the removal of any attribute Y from X, and the dependency always is valid
For example:
Course and student these tables have a partial dependency, but if we have the field registration date, this date will depend on the course and student completely, we must create another table with the field registration date to remove this complete dependency.
If we remove or update the table registration date, neither course nor student must not change.
Answer:
The trigger code is given below
create trigger F1_Del
after delete on Friend
for each row
when exists (select * from Friend
where ID1 = Old.ID2 and ID2 = Old.ID1)
begin
delete from Friend
where (ID1 = Old.ID2 and ID2 = Old.ID1);
end
create trigger F1_Insert
after insert on Friend
for each row
when not exists (select * from Friend
where ID1 = New.ID2 and ID2 = New.ID1)
begin
insert into Friend values (New.ID2, New.ID1);
end
