Implementation Patterns for CDS Views in SAP S/4HANA at SAP TechEd 2017
You’re interested in the implementation patterns of CDS views in SAP’s digital core? Then the keyword here is VDM.
SAP S/4HANA’s virtual data model (VDM) uses ABAP CDS views to offer a simplified, easy-to-understand and harmonized data model on top of the suite tables (but avoiding their cryptical technical names). It is enriched with business semantics and enables an easy consumption of the business data.
ABAP CDS allows the definition of semantically rich data models providing all metadata that are necessary to build analytical or transactional apps or even remote APIs.
VDM represents the cornerstone of the programming model in SAP S/4HANA.
The main characteristics of VDM views are:
- Business-oriented
- Easily understandable & semantically rich
- Reusable & stable
- Executed on SAP HANA
Customers and partners can develop on top of the released VDM views.
In the session S4H220 – Implementation Patterns for CDS Views in SAP S/4HANA– at SAP TechEd 2017, some insights were provided by SAP’s experts on how the virtual data model is structured and how to implement the different types of core data services views required for building analytical apps, transactional apps and remote APIs.
View the presentation (PDF)
Related Information in the SAP Community
i have a requirement where i need to disable the field in the standard CDS View 'C_PurchaseReqnItem' and as per the below it is displaying the Field PurReqCreationDate in the "Manage Purchase Requisition Professional" Fiori App.
@UI: { fieldGroup: { qualifier: 'QuantityDate02', position: 20, importance: #HIGH } }
Document.PurReqCreationDate,
Now My Requirement i need to disable the field as i had to use annotation
@ObjectModel.readOnly: true
i had done the below code
@AbapCatalog.sqlViewAppendName: 'ZCPURREQNITM'
@EndUserText.label: '${ddl_source_description}'
extend view C_PurchaseReqnItem with zC_PurchaseReqnItem {
@ObjectModel.readOnly: true
Document.PurReqCreationDate }
But I am getting error "View field PURREQCREATIONDATE-C_PURCHASEREQNITEM already exists in parent object (DDL source )" could you please help how to handle this situation.
Hi! Please raise your question within the SAP Community Q&A Platform:
https://answers.sap.com/questions/ask.html
Kind regards,
Carine
Hi Carine,
Thanks for replying and i had already raised the question but waiting for the answer and please find the below link which i had raised the question
https://answers.sap.com/questions/641838/extending-abap-cds-views.html#
Hi Carine,
both links (to Teched session as well PDF presentation) are broken. Is there anything similar available? Can we find it on a different location?