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ABAP_CDS in ABAP Release 7.89 ITOC
ABAP_MODIFICATION_NN CDS Custom Entity Extensions
The new statement EXTEND CUSTOM ENTITY of the DDL of ABAP CDS makes it possible to add new elements to existing CDS custom entities by using CDS custom entity extensions.
ABAP_MODIFICATION_NN CDS View Entity, LEFT and RIGHT
In CDS view entities, the functions LEFT and RIGHT have been enhanced. They now accept literals, fields, parameters, expressions, and built-in functions as argument len .
ABAP_MODIFICATION_NN CDS View Entity, CASE ELSE NULL
In CDS view entities, the addition ELSE NULL is available in simple and complex case distinctions. It defines the null value as return value of the ELSE branch.
CDS entity buffering was enhanced: View on view buffering is now supported, under the precondition that the CDS view entity used as data source meets certain requirements.
ABAP_MODIFICATION_NN CDS DDIC-Based Views Are Obsolete
ABAP_CDS_V1_VIEWS , defined using the statement DEFINE VIEW, are obsolete. When creating new data models, ABAP_CDS_V2_VIEWS , defined using DEFINE VIEW ENTITY, should be used instead.
ABAP_MODIFICATION_NN ABAP Program That Lists Usages of CDS-Managed DDIC Views
Using CDS-managed DDIC views has been declared obsolete. The following ABAP program lists all repository objects that use CDS-managed DDIC views: RUT_WHERE_USE_SQLVIEW.
