ABAP S4 HANA

 

ABAP in the S/4HANA landscape has evolved significantly to leverage the capabilities of the SAP HANA in-memory database and align with S/4HANA’s simplified data model and Fiori user experience.

Critical Changes in S/4HANA ABAP:

  1. Code Pushdown: S/4HANA encourages moving complex calculations and data-intensive operations from the application layer (ABAP) to the database layer (HANA) to achieve optimal performance. This is facilitated by Open SQL and Core Data Services (CDS) views.
  2. Core Data Services (CDS): CDS is a domain-specific language that defines semantically rich data models that are easily consumable by various applications and services. These models are often leveraged to create OData services and Fiori applications, making CDS a cornerstone in S/4HANA development.
  3. ABAP RESTful Application Programming Model (RAP): RAP provides a streamlined framework for building OData-based Fiori applications and web APIs. It reduces development time by automating repetitive tasks and enforcing a structured development approach.
  4. Fiori UI Adaptation: In S/4HANA, ABAP developers need to shift their focus towards developing Fiori applications using SAPUI5. This transition necessitates learning JavaScript and utilizing Fiori elements for faster UI development.
  5. Data Model Simplification: S/4HANA simplifies the data model by removing redundant tables and indexes. Consequently, ABAP code that relied on legacy tables may require adjustments to align with the new simplified structures.
  6. ABAP Cloud (Embedded Steampunk): This new cloud-based development environment enables the creation of cloud-ready ABAP extensions for S/4HANA Cloud. It imposes restrictions on ABAP language features to guarantee compatibility and smooth upgrades.

Challenges and Opportunities:

  • Learning Curve: ABAP developers must acquire new HANA, CDS, RAP, and SAPUI5 skills to work effectively in the S/4HANA environment.
  • Code Adaptation: Legacy ABAP code requires substantial modification to adhere to S/4HANA’s architecture and best practices.
  • Performance Optimization: ABAP code must be optimized to utilize HANA’s in-memory processing power fully.
  • Opportunities: S/4HANA ABAP allows for the creation of modern, responsive applications with enhanced user experience.

SAP ABAP Training Demo Day 1 Video:

You can find more information about SAP ABAP in this SAP ABAP Link

Conclusion:

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