ha.ckers.org have a good article about issue’s on using usernames as a primary key, which i highly agree with and believe that you should always have an increment unique id.
http://ha.ckers.org/blog/20080305/username-based-primary-key-issues/
ha.ckers.org have a good article about issue’s on using usernames as a primary key, which i highly agree with and believe that you should always have an increment unique id.
http://ha.ckers.org/blog/20080305/username-based-primary-key-issues/