Understanding Code Pushdown Technique in SAP ABAP on HANA – Complete Practical Guide

Code Pushdown Technique in SAP ABAP on HANA – SAP ABAP Course in Hyderabad by Index IT

Learn Code Pushdown Technique in SAP ABAP on HANA with real-time training at Index IT – SAP ABAP Course in Hyderabad.

Modern SAP development has completely transformed after the introduction of SAP HANA and SAP BTP ABAP Environment.

If you are planning to build a career in S/4HANA or ABAP on Cloud, understanding Code Pushdown Technique and CDS Views is mandatory.

If you're looking for structured hands-on training, check our detailed SAP BTP ABAP Course in Hyderabad where we cover CDS, RAP, BTP, and real-time project implementation.

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Traditional ABAP Architecture (Before HANA)

In classical ABAP:

Data stored in Database Layer
Logic executed in Application Layer
Output shown in Presentation Layer

When we fetch:

10,000 sales orders
50,000 item records

And display only 10 aggregated results…

We still:

Fetch full dataset
Loop through records
Perform calculations in ABAP

This consumes:

High memory
More CPU
Network bandwidth
Processing time

This model is called:

Data-to-Code Paradigm

What is Code Pushdown Technique?

With SAP HANA (In-Memory Database), SAP introduced a smarter and more efficient way of processing data.

Instead of:

❌ Bringing large volumes of data to ABAP
❌ Processing data using loops in the application layer

We now:

✅ Push business logic directly to the database layer
✅ Use SAP HANA’s powerful in-memory engine
✅ Fetch only the final processed results

Code-to-Data (Code Pushdown) Technique

This performance optimization concept is deeply explained in our 👉 SAP ABAP Course in Hyderabad with real-time project scenarios and detailed performance comparisons.

Technologies Used for Code Pushdown

SAP provides three major approaches to implement Code Pushdown Technique in SAP ABAP on HANA:

CDS Views (Core Data Services)
AMDP (ABAP Managed Database Procedures)
New Open SQL Syntax

Among these, CDS Views are the most widely used approach in S/4HANA and SAP BTP ABAP projects because they provide better performance, reusable data models, and seamless integration with Fiori and OData services.

What are CDS Views?

CDS (Core Data Services) are a modern data modeling approach in SAP ABAP on HANA that enable developers to define and process business logic directly at the database layer.

CDS Views allow developers to:

Define semantic data models
Push aggregation logic to the database
Create reusable business views
Improve application performance significantly

CDS Views are created in:

Eclipse (ABAP Development Tools)
SAP BTP ABAP Environment

CDS Views are not created in traditional SE11, as they are part of the modern ABAP development model optimized for SAP HANA.

CDS View vs CDS View Entity

In SAP ABAP on HANA, there are two ways to define Core Data Services:

Older Syntax:

DEFINE VIEW

New Recommended Syntax:

DEFINE VIEW ENTITY

Why Use View Entity?

No separate SQL view required
Cleaner and simplified structure
Aligned with modern ABAP standards
Better long-term maintainability

If you're learning S/4HANA development, always focus on CDS View Entity, as it is the recommended and future-proof approach.

We teach both legacy and modern approaches in our 👉 SAP ABAP Course in Hyderabad so students can confidently handle real-time S/4HANA systems.

Types of CDS Views (Very Important for Interviews)

In SAP ABAP on HANA, CDS Views are categorized based on their purpose and usage. Understanding these types is extremely important for S/4HANA interviews and real-time project implementation.

SAP categorizes CDS Views into different layers based on how the data is modeled, combined, and consumed in applications like Fiori, OData, and Analytics.

1️⃣ Interface View (I_)

Interface Views are the foundation layer in CDS architecture. They directly expose database tables or basic business logic.

Expose table fields
Add simple calculations
Define associations
Reusable across multiple applications

Naming Convention Example: I_SalesOrder, I_Product

2️⃣ Composite Interface View

Composite Views combine multiple interface views or tables and apply additional business logic such as joins, filters, and aggregations.

Join multiple data sources
Apply aggregation (SUM, COUNT, etc.)
Implement advanced business logic
Prepare data for consumption layer

3️⃣ Consumption View (C_)

Consumption Views are created for front-end usage such as SAP Fiori, OData Services, and Analytics.

Add UI annotations
Define labels and search help
Enable filtering and sorting
Used in Fiori applications

Naming Convention Example: C_SalesReport

4️⃣ Private View (P_)

Private Views are used internally by SAP and are not intended for direct customer consumption.

Internal framework usage
Not exposed externally
Supports SAP standard logic

💡 Interview Tip: Always explain CDS layering as Interface → Composite → Consumption when answering S/4HANA interview questions.

Classic ABAP vs Code Pushdown (CDS) – Performance Comparison

Feature	Classic ABAP	CDS / Code Pushdown
Processing Layer	Application Server	Database Layer (HANA)
Data Transfer	Large dataset fetched	Only final result fetched
Performance	Slower for large volumes	Optimized & Faster
Aggregation	Handled in LOOP	Handled in Database (SUM, GROUP BY)
Memory Usage	High	Low
Future Relevance	Legacy approach	S/4HANA Standard

🚀 In modern S/4HANA and SAP BTP ABAP projects, Code Pushdown using CDS Views is the recommended and performance-optimized approach.

Frequently Asked Questions (FAQs)

1. What is Code Pushdown Technique in SAP ABAP?

Code Pushdown Technique is an optimization approach where business logic is executed at the database layer (SAP HANA) instead of the application server, improving performance and reducing data transfer.

2. What are CDS Views in SAP?

CDS (Core Data Services) Views are modern data modeling objects in SAP ABAP on HANA that allow developers to define semantic data models and push processing logic to the database layer.

3. What is the difference between CDS View and CDS View Entity?

CDS View Entity is the modern recommended syntax that does not create a separate SQL view, offering better maintainability and alignment with S/4HANA development standards.

4. Why are CDS Views important in S/4HANA?

CDS Views are important because they enable high-performance applications by utilizing SAP HANA’s in-memory processing and support Fiori, OData, and analytics integration.

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