ABAP_SYNTAX ... COMPOSITION $[cardinality>$] OF target ...>
What does it do? Defines a CDS composition> in the element list> of a CDS custom entity>. The CDS composition associates the current CDS entity, as a composition source>, with the composition target> target> specified in the definition of the CDS composition. CDS compositions are specialized CDS associations> and they work in the same way as described in topic CDS DDL - CDS View Entity, COMPOSITION >>. The only difference is that in CDS compositions in CDS custom entities, the addition AS> is not used. The name of the CDS composition is declared using the name _compos> in the element list of the CDS custom entity.
ABAP_EXAMPLE_VX5 The following DDL source code shows a CDS custom entity that defines a CDS composition to another CDS custom entity: DDLS DEMO_SALES_CUSTOM_COMPOSITION ABAP_EXAMPLE_END