Is it normal if I have table with have no relationship with other tables?

I have an existing application. Now my boss wants me to create a FAQ for apps usage documentation.

So I create tbl_faq. But tbl_faq doesn’t have any relationship with others table.

tbl_faq
id int NOT NULL PRIMARY KEY AUTO_INCREMENT
title varchar(255) NOT NULL
content text NOT NULL
created DATETIME

But, I have some doubt in my mind when I see the final ERD diagram (using Workbench). Because I have 1 weird table which doesn’t have any relationship at all.

My question: is this normal or not?

Answer

Maybe it has no relationship to anything but the application as a whole. This is is a fairly normal situation.

One way you could tie it in is if you link this to the user that created it, as that might be useful information, or if you can think of any other sorts of relationships that this data would naturally have.