Concepts
The mental model behind cds-data-federation. Read these pages once; the rest of the reference makes sense against this foundation.
:material-book-alphabet: Terminology
How federation, delegation, replication, and consumption view are used here versus in CAP's Service Integration guide and the data industry at large.
:material-link-variant: Consumption views
The CDS projection IS the federation contract. What every
as projection on remote.X { … }declaration tells the plugin.:material-graph-outline: Cross-service scenarios
The canonical reference for
$expandand navigation that crosses a local / remote boundary — four expand topologies and two navigation flows.:material-routes: Service query execution
How CQL queries reach delegate handlers — and what happens when they don't. The dispatch pipeline from
cds.run()and HTTP down to the DB service.