Is Multiple radcheck tables possible?

Hi, I want to have two radcheck tables, one for storing user-password for system accessing and the other for storing user-password for management interface accessing. Is it possible to config the server to switch to different table according to some parameters pass by the client? I think it can be done by having two servers and each server has its own config and each config has its own dialup sql setting. However, since I would hope to see if it is possible to do it with just one server. Thanks in advance for any suggestion. Regards, Pete