Perhaps this is the proper forum to ask this question: I simply don't understand what SAP is form? Isn't it just a bunch of forms sitting on top a database? How is it different from Oracle services?
SAP is meant to automate business processes. In particular, it focuses on general business processes that cross industries, plus specific business process that apply generally within an industry.
For instance, cross-cutting processes might be procurement, accounts receivable, accounts payable, asset management, general ledger, invoicing, payroll, time and expense entry, contract management etc. Each of these single functions has a set of common forms that can be customized with the master data of the specific implementation (select box 1 has values Product A, Product B and Product C), plus any custom business rules (field A value X means field B is disabled).
And for your next trick, get everyone to agree on the set of forms, the transitions between forms, the required validations, the exact right set of master data, and other business rules.
And that is barely scratching the surface.
There's a database abstraction layer, which works around some limitations of the underlying databases. What SAP sees as a table might be a set of tables in the database.
It's not an unpleasant system to work with.