MySQL question...

[Xpression]

        Hi all, I've finished installing MySQL on
FreeBSD-4.5 RELEASE, now I've to add the users to control
their databases, but I'm confused...where they will write
their databases or do I have to create each one, I'm running
as mysql user, they will have access to /mysql sub-dir ???
Can I create a sub-dir for each user with full access to it
and no access to anymore one ??? I've read the manual
(Adding New Users) but it's a little confused, thanks...