post-secondary advanced diploma vs Bachelor

I've never heard of an advanced diploma. But I'll give my limited knowledge.

Diplomas:
Tend to be given from colleges for more "practical", hands on things like carpentry, welding etc. I also think they may be cheaper and the program for three years instead of four? Although colleges tend to have diploma programs, they can also have a few Bachelor programs.

Bachelor:
Tend to be from universities (more expensive) for more theoretical things.

I'm not too sure how accurate this is though, but it is at least for the ones near me.