ABAP Keyword Documentation → ABAP Dictionary → ABAP CDS in ABAP Dictionary → ABAP CDS - Views
ABAP CDS - DDL Statements
The Data Definition Language DDL of the ABAP CDS follows the general CDS syntax rules and comprises the following statements for the definition of CDS views and for enhancements of CDS views.
7.31 | 7.40 | 7.54
DDL has its own editor in ADT, which is documented there.