I'm pretty sure I know what you are asking.
As far as going back to nursing instruction in hospitals, most hospitals, at least where I live, never stopped their nursing programs
I live in Pittsburgh (city), Pennsylvania (state) and we have a large number of very large health care orginazations and hospital systems.
Many of our hospitals have their own nursing school or nursing program. These programs usually only offer training to be an RN, not an LPN (Licensed Practial Nurse), or special certifications, ie. midwife, etc.
Most programs are usually 18 to 24 months in length and at the end the person may sit for the State Boards to receive licensure to be an RN. Upon completion of the program the person would have an ASN or ADN. They would not have a BSN.
Pre-requisite courses like Anatomy and Physiology, Math, Biology are taken at another University or Community College. Your core Nursing classes and clinicals are taught at the hospital.
A person who completes a program through a hospital is pretty much like a person who completes a 2 year program through a Community College. They have spent about the same amount of time in the program and have taken many of the same types of pre-requisites. Although, they may have some more clinical time under their belts.
A benefit of the Hospital Nursing schools is that they will pay for your education maybe even your books and uniforms and in return you will have to work for them for a period of time. Usually it's a two year commitment.
Of course, you don't have to commit to them. You could pay for your tuition, etc. out of pocket if you wanted to. But I have found the Hospital programs to be much, much more expensive than Community College. In my town Communit Col. is about 4,000 in tuition compared to a hospital which was 20,000.00
I also want to add that due to the nursing shortage many healthcare facilities - LTC, Hospitals, etc. will pay for your nursing classes in return for a working commitment and many facilities offer state certified training to become a Certified Nurses Aid.
This is just what I have found in my area. Programs in other states may be different.