How to extend a standard CDS view for new fields

[Sandeep_Verma]

For example, there is a standard CDS I_SalesDocumentItem which contains joins on multiple sales tables like VBAK VBAP VBKD etc.

Create a new ABAP repository object

Give some name and description

Create a TR and proceed

Out of the available templates select the one for extend view as here

Use below code to add new fields

@AbapCatalog.sqlViewAppendName: '<Some custom CDS view SQL name>'

@EndUserText.label: '<Description>'

extend view <standard_CDS>(For ex:I_SalesDocumentItem) with <NAME of this custom CDS>

{

TABLENAME.NEWFIELD1 as ALIAS1,

TABLENAME.NEWFIELD2 as ALIAS2

}