A tip from Will in regards to upgrading a database to QuickBooks Enterprise Solutions:
Q: I'll be upgrading our database this weekend to QB Enterprise. Is there anything special I should do on the server or w/the database in terms of best practices?
A: In general, you want to upgrade the database on a local drive. I would copy it to a local machine, do the upgrade, and then copy it back to the server. That way you don't have to install the full application on the database server.