Wordpress and Mediawiki allow when setting up an
installation to use a prefix for db tables. This would
be useful for people who only get one database with
their hosting service.
For example, you can set mw_ as the prefix for all db
tables for an installation of mediawiki and then could
install another at mw2_ and a second mediawiki could
use the same database.
This shouldn't be hard to code in cchost at all...