SAP NetWeaver AS ABAP Release 752, ©Copyright 2017 SAP AG. All rights reserved.
ABAP - Keyword Documentation → ABAP - Release-Specific Changes → Changes in Releases 7.5x → Changes in Release 7.52 →
ABAP CDS in Release 7.52
2. Cardinality in LEFT OUTER JOIN
Annotations as CDS Objects
From Release 7.52, it is possible to define CDS annotations as standalone CDS objects using the statement DEFINE ANNOTATION in DDLA source code.
A CDS annotation definition dictates precisely how the annotation needs to be specified in CDS source code in annotation syntax.
In DDL source code, annotation definitions are covered by source code coloring and Code Completion. In DDLA source code and DDLX source code, the definitions are also covered by the syntax check.
SAP delivers annotation definitions for the SAP annotations. No other annotations should be used at present.
Cardinality in LEFT OUTER JOIN
In a LEFT OUTER JOIN, an addition TO ONE or TO MANY can be specified for the cardinality. This addition is evaluated by an SAP HANA database as a note for optimization.
This option exists in earlier releases in ABAP CDS, but has been documented only from Release 7.52. In
Open SQL, the corresponding syntax was introduced in Release 7.52.
Access Control
The following enhancements have been implemented in CDS access control:
Extensions
CDS view extensions are now connected to
Switch Framework whenever they are defined in a
package that is assigned a switch.