How do users get permissions in MySql when they log into my website?

I have a MySql database set up called users. The usually things compulsory to register to my website have been a username as well as password. When this is completed, a database populates with a users info as requested. How does MySql have this brand new users permissions to have it where they can right away download files from my website? As of right away any one can download as well as take my sites files but logging in. How do we stop which also?
Thanks in allege for any help.

How do you put JavaScript into an HTML document?

Hi! we am only commencement to sense web pattern upon my own. So we am messing around with Notepad++ as well as my website is offline, though the pattern is cool.

I wish to supplement upon the countdown time timer which ends upon Aug 1st, though we was acid online as well as people have been observant which it is the Javascript denunciation thing.

Is there any approach we can insert Javascript countdown timers in to HTML documents?

Thanks!