Building Custom CDS Entities with Unmanaged Queries in ABAP RAP
Core data services (CDS) are the backbone of the ABAP RESTful Application Programming Model (RAP). They define our data models, push logic down to the SAP HANA database, and cleanly express relationships. When data lives in standard tables, a standard CDS view stack (interface/projection views) combined with standard managed query capabilities works beautifully. But what if your data does not live in a standard table? What if it requires a web service API call, complex procedural computation, or access to Clean-Core-restricted objects via legacy function modules? ...