Hi,
I am a highly experienced Oracle professional but very new to SAP. I am hoping to learn SAP, particularly the SAP ERP business applications such as Financials, Procurement and Sales & Distribution.
So to start with, I was hoping to install an SAP ERP instance on an Oracle Enterprise Database 11g or 12c. And in relation to this I have a couple of questions. Please bear with me as I am very new to SAP and would highly appreciate if you could help. (Also please do not use SAP specific abbreviations since they would simply bounce off my head 
).
1. Where do I download SAP ERP? Do I need to be a customer to download and install for personal learning purposes?
2. I read it somewhere that the software can be downloaded from http://service.sap.com. If yes, then how to I get access to this website?
3. Is there a demonstration database that SAP provides for learning purposes (this way I don't have to worry about the functional setups)? If yes, where can I find the list of exact software to be downloaded, and the installation guide to install SAP ERP on Oracle Enterprise Database on a single node (that is both db tier and application tier on same machine)?
I guess these are the bare minimum questions to let my SAP learning gig going :-)
Thanks again for reading and looking forward to get some valuable suggestions and advice.
Regards
Kabeer Khan