Hello everyone,,

I want to build a real estate website with wordpress and ClassiPress from AppThemes but am a little confused about some of the deployment options. Actually I want to create another 3 subdomains (Forum, Blog and Q&A) besides the main domain. I need to have a new wordpress installation in every subdomain folder but here is a problem, since my host only allow me one MySQL database.

I want to know if I can use the same database for all three wordpress installations. If so, how can I do this? Any help will be greatly appreciated!