>Michel, while T-SQL allows you to include spaces in alias names, the practice should be discouraged.

I agree.

>Several tools/applications that consume result sets have difficulty with spaces - and a few will actually convert the space to an underscore (creating a potential conflict in name mapping).

Good to know.

>Unless there is a requirement for doing so, and/or you're working in a tightly-controlled environment, I'd recommend against using spaces.

Thanks