CDS analytical projection views can now also have analytical dimension views as projected entity.
ABAP_MODIFICATION_NN @AbapCatalog.preserveKey is Obsolete
The CDS annotation @AbapCatalog.preserveKey is obsolete. In ABAP Development Tools (ADT), this is indicated by a syntax check warning. The implicit default behavior of ABAP_CDS_V1_VIEWS is @AbapCatalog.preserveKey: true. This change is incompatible if a ABAP_CDS_V1_VIEW does not use this annotation or uses it with the value false.
ABAP_MODIFICATION_NN Release of CDS Simple Types
CDS simple types define elementary data types natively in ABAP CDS. A CDS simple type can be enriched with metadata using CDS annotations. The syntax statement for defining a CDS simple type is DEFINE TYPE.
The ABAP annotation Environment.sql.passValue is now also available for CDS parameters in CDS view entities, CDS projection views, and CDS hierarchies. The annotation scope has been enhanced.
ABAP_MODIFICATION_NN New AnnotationEnvironment.sql.passValueForClient
A new ABAP annotation is available in CDS view entities, CDS projection views, and CDS hierarchies: Environment.sql.passValueForClient. It works in a similar way to the annotation Environment.sql.passValue, but for client fields. It specifies whether a placeholder ? or a literal value is passed to the database in an ABAP SQL condition when the client field is compared with a host variable.
ABAP_MODIFICATION_NN New Cardinality Syntax for Associations and Joins
A new syntax for specifying the cardinality of CDS associations, CDS joins, and of filter conditions of CDS path expressions is now available: ${MANY $| ONE $| EXACT ONE$} TO ${MANY $| ONE $| EXACT ONE$} This syntax allows a source and a target cardinality to be specified, while the previously available numeric syntax only allowed the target cardinality to be specified. The new cardinality syntax can be used to improve query performance. It is available in ABAP_CDS_V2_VIEWS , CDS projection views, CDS custom entities, and CDS abstract entities.
ABAP_MODIFICATION_NN CDS Scalar Functions
The new CDS entity is available: the CDS scalar function. It is defined using the CDS DDL statement DEFINE SCALAR FUNCTION. A CDS scalar function is linked with an AMDP function in which it is implemented using SQLScript. As of this release, scalar functions are available for two different runtimes:
The HANA SQL runtime. SQL-based scalar functions can be created internally at SAP and externally by customers and partners.
The ABAP Analytical Engine. Analytical scalar functions can be created internally at SAP only. They are delivered to customers.
ABAP_MODIFICATION_NN Extension of the CAST Matrix
The matrix of types that can be converted to each other using CAST has been enhanced for ABAP_CDS_V1_VIEWS and for ABAP_CDS_V2_VIEWS . Data types DECFLOAT16 and DECFLOAT34 can now be cast into data type CURR .
