ABAP CDS in ABAP Release 7.55 - ABAP Keyword Documentation

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ABAP CDS in ABAP Release 7.55

1. Defining Associations in CDS Projection Views

2. CDS View Entities

3. CDS View Entity Extensions

4. New Session Variables for User Time Zone and User Date

5. New String Function for Regular Expressions

Modification 1

Defining Associations in CDS Projection Views

It is now possible to define new associations to external data sources in CDS projection views.

Modification 2

CDS View Entities

A new kind of CDS view is available: the CDS view entity. CDS view entities represent an improved version of CDS DDIC-based views (obsolete) (DEFINE VIEW). They serve the same purpose and have the same structure as CDS DDIC-based views (obsolete), but offer many advantages. CDS view entities are planned to replace CDS DDIC-based views (obsolete) in the future. A CDS view entity is defined with the statement DEFINE VIEW ENTITY.

Modification 3

CDS View Entity Extensions

The new statement EXTEND VIEW ENTITY of the DDL of ABAP CDS makes it possible to add new view fields to existing CDS views entities and CDS projection views by using CDS view entity extensions.

Modification 4

New Session Variables for User Time Zone and User Date

Two new session variables are available in ABAP CDS:

$session.user_timezone, which returns the time zone defined in the user master record for the local user time.
$session.user_date, which returns the local date of a user.

Modification 5

New String Function for Regular Expressions

ABAP CDS now supports the new string function REPLACE_REGEXPR that allows regular expressions to be replaced.