Link Multiple Databases WITHOUT Subreport

Hello,

I have data stored in 2 databases which I want to pull into 1 Crystal report without using a subreport. There is a common ID between tables, so when I link via subreport, the information pulls correctly. However, is there a way to directly link these two databases without a subreport so that all the data is accessible in the main report? I tried to do this but keep getting errors.

Thanks!