I might be wrong but is there a small thing missing on page 67 (PDF Page 75)?
There is an "order by" for the attribut Make_Model, but the alias is not set for the Car.Make + '_' Car.Model
Unless i am wrong:
select Car.Make + '_ ' + Car.Model
select Make_Model = Car.Make + '_ ' + Car.Model
select Car.Make + '_ ' + Car.Model as Make_Model
I want to be the very best
Like no one ever was