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ABAP_CDS in ABAP Release 7.80 ITOC
ABAP_MODIFICATION_NN Defining Associations in CDS Projection Views
It is now possible to define new associations with external data sources in CDS projection views.
ABAP_MODIFICATION_NN CDS View Entities
A new kind of CDS view is available: the CDS view entity. CDS view entities represent an improved version of ABAP_CDS_V1_VIEWS (DEFINE VIEW). They serve the same purpose and have the same structure as ABAP_CDS_V1_VIEWS , but offer many advantages. CDS view entities are planned to replace ABAP_CDS_V1_VIEWS in the future. A CDS view entity is defined with the statement DEFINE VIEW ENTITY.
