I have two old Mac pros, one running 10.13.6 and the other, in mothballs, with 10.10 (I think) installed. Is it feasible to run SQL on the 10.13 machine? If so, what would need to be installed. This is for someone trying to learn SQL (me). I'm not a unix guy so would want some kind of graphical interface. I'd be a newb in this as well but, regarding distributed computing, is there some way I can interface the CMPs to do parallel computing? Didn't Apple have a free app for this?