The reason why there has been a move toward cloud services and service as a software is because it's so much easier. There are fewer databases, and the cost is lower to have it hosted.

You can pick one of the hosted cloud services as opposed to owning it and doing it yourself. Your cost of ownership on the hardware, the data storage, and the maintenance all go down. It depends on what service you use.

The costs start going up as you move to a hybrid solution where you have your own dedicated pieces, but you're sharing parts of it in the public version. That costs a little bit more because you've bought your own database server that keeps your data separate from everybody else.

The private solution is going to be the most expensive version.

It's a very expensive solution.

I don't have this information.

I recommend it to SAP (ASE, IQ, HANA, etc.) database users.