The SAP ABAP course is designed to equip learners with strong technical skills for developing and customizing SAP applications. It covers ABAP programming fundamentals, internal tables, reports, modularization, database access, enhancements, and object-oriented concepts. The course also introduces modern ABAP practices for SAP S/4HANA, focusing on performance optimization and clean coding standards. With hands-on exercises and real-world use cases, this course prepares professionals for ABAP development roles in enterprise SAP environments.
SAP ABAP Training Interview Questions Answers - For Intermediate
1. What is the difference between Open SQL and Native SQL in ABAP?
Open SQL is database-independent and allows ABAP programs to access SAP database tables in a consistent manner across different database systems. Native SQL, on the other hand, allows direct execution of database-specific SQL commands and is dependent on the underlying database. While Open SQL ensures portability and automatic client handling, Native SQL provides more flexibility but requires careful handling of performance and security.
2. What is a Search Help, and how does it work in ABAP?
A search help is a Data Dictionary object that assists users in selecting valid input values for screen fields. It retrieves data from one or more tables or views and displays it in a structured list. Search helps improve user experience, ensure data consistency, and reduce input errors by restricting selections to predefined values.
3. Explain the difference between SY-SUBRC and SY-DBCNT.
SY-SUBRC stores the return code of the last ABAP statement and indicates whether an operation was successful or not. SY-DBCNT contains the number of database rows processed by the last Open SQL statement. While SY-SUBRC is used for error handling and control flow, SY-DBCNT is mainly used for validation and logging purposes.
4. What are Update Types in ABAP?
Update types define how database changes are processed in SAP. The main update types are synchronous update, asynchronous update, and local update. Synchronous updates ensure immediate database changes but can impact performance, while asynchronous updates improve performance by processing changes in the background. Local updates are restricted to the current LUW and are mainly used for testing and special scenarios.
5. What is an Update Task in ABAP?
An update task is a mechanism used to perform database updates asynchronously after the main program logic is completed. It ensures data consistency by executing update function modules within a separate update work process. Update tasks help improve system performance and are commonly used in transactional processing.
6. Explain the concept of Logical Units of Work (LUW).
A Logical Unit of Work represents a sequence of database operations that must be executed as a single logical transaction. LUWs ensure data consistency by committing all changes together or rolling them back entirely in case of errors. In SAP, LUWs are controlled using statements such as COMMIT WORK and ROLLBACK WORK.
7. What is the difference between COMMIT WORK and COMMIT WORK AND WAIT?
COMMIT WORK triggers the execution of update tasks asynchronously and returns control to the program immediately. COMMIT WORK AND WAIT waits until all update tasks are completed before continuing program execution. The latter ensures that database updates are finalized before subsequent logic is executed.
8. What are Table Buffers in SAP, and why are they used?
Table buffers store frequently accessed table data in application server memory to reduce database access. They improve system performance by minimizing round trips to the database. Depending on the table type and access pattern, SAP supports single-record buffering, generic buffering, and full buffering.
9. What is a View, and what are its types in ABAP?
A view is a virtual table defined in the Data Dictionary that retrieves data from one or more database tables. Common types of views include database views, projection views, maintenance views, and help views. Views simplify data access and provide a logical abstraction of underlying database structures.
10. What is the difference between CALL TRANSACTION and SESSION Method?
CALL TRANSACTION executes a transaction immediately within the same session and is mainly used for synchronous processing. The session method stores transaction calls in a batch input session, which can be executed later. CALL TRANSACTION is suitable for real-time processing, while the session method is preferred for large data uploads and error handling.
11. What is Batch Input, and when is it used?
Batch Input is a technique used to transfer large volumes of data into SAP by simulating user input for standard transactions. It is commonly used for data migration and mass data uploads. Batch Input ensures data validation and consistency but may have performance limitations compared to direct input methods like BAPIs or IDocs.
12. What are RFCs, and how are they used in ABAP?
Remote Function Calls (RFCs) enable communication between SAP systems or between SAP and external systems. RFCs allow function modules to be executed remotely, supporting distributed system architectures. They are widely used in system integration, data exchange, and interface development.
13. Explain the difference between Synchronous RFC and Asynchronous RFC.
Synchronous RFC waits for the remote system to complete processing and return a response before continuing execution. Asynchronous RFC initiates the remote call and continues program execution without waiting for a response. Asynchronous RFC is suitable for performance-critical and background processing scenarios.
14. What is a Transport Request in SAP?
A transport request is used to move development objects such as programs, tables, and configurations from one SAP system to another. It ensures controlled and consistent changes across development, quality, and production systems. Transport requests are managed using the SAP Transport Management System (TMS).
15. What is Error Handling in ABAP?
Error handling in ABAP involves detecting, managing, and responding to runtime and logical errors. Techniques include checking system variables, using exception handling in function modules and classes, and validating input data. Proper error handling ensures system stability and reliable application behavior.
SAP ABAP Training Interview Questions Answers - For Advanced
1. Explain the Universal Journal (ACDOCA) and its impact on ABAP development.
The Universal Journal consolidates multiple financial tables into a single line-item table, ACDOCA, simplifying the data model in SAP S/4HANA. This change eliminates redundant aggregates and reconciliation logic that were common in ECC. From an ABAP perspective, programs must be redesigned to avoid assumptions about classic tables and instead rely on CDS views and released APIs. The simplified model improves reporting performance and data consistency while requiring developers to adapt to new access patterns.
2. How does CDS View Extension support the Clean Core approach?
CDS View Extension allows additional fields, associations, and annotations to be added to standard SAP CDS views without modifying the original objects. This mechanism supports the Clean Core principle by enabling enhancements that survive system upgrades. ABAP developers can safely extend standard content while maintaining compatibility with SAP-delivered functionality, ensuring upgrade stability and long-term maintainability.
3. What is the role of Behavior Definitions in RAP?
Behavior Definitions define how business objects behave in the ABAP RESTful Application Programming Model. They specify operations such as create, update, delete, validations, determinations, and actions. These definitions separate transactional logic from data modeling, enabling consistent behavior across services and UIs. Behavior Definitions ensure transactional integrity and simplify development of enterprise-grade applications.
4. Explain Managed vs Unmanaged RAP scenarios.
Managed RAP scenarios rely on the framework to handle transactional processing, persistence, and locking automatically. Unmanaged scenarios require explicit implementation of these aspects by the developer, offering greater flexibility. Managed scenarios are preferred for standard business objects due to reduced complexity, while unmanaged scenarios are used for legacy integration or custom persistence requirements.
5. How does ABAP handle large data volumes efficiently in S/4HANA?
ABAP handles large data volumes by minimizing data transfer and pushing computation to the database. Techniques such as CDS views, AMDP, and optimized Open SQL are used to process data at the HANA level. Internal tables are carefully chosen based on access patterns, and parallel processing is applied where applicable. These practices ensure scalability and high performance even with massive datasets.
6. Explain the concept of Database Independence in ABAP and its relevance today.
Database independence ensures that ABAP programs function consistently across different database platforms. While SAP HANA introduces database-specific features, ABAP preserves independence through Open SQL and abstraction layers. Modern ABAP balances this principle by using HANA-optimized features only where necessary, maintaining portability while benefiting from in-memory capabilities.
7. What is the significance of ABAP Cloud Syntax and Released APIs?
ABAP Cloud Syntax restricts the use of unreleased or obsolete language features to ensure cloud readiness. Released APIs provide stable, upgrade-safe interfaces for accessing SAP functionality. Together, they enforce best practices, prevent tight coupling with SAP internals, and support clean, extensible development aligned with SAP’s cloud strategy.
8. How does SAP ABAP support event-driven architectures?
SAP ABAP supports event-driven architectures through business events, messaging services, and integration with SAP BTP. Events are triggered by business object changes and consumed asynchronously by other systems or applications. This approach improves decoupling, scalability, and responsiveness, making it suitable for modern distributed enterprise landscapes.
9. Explain the role of CDS Analytical Queries in reporting.
CDS Analytical Queries build on CDS Cube Views to provide real-time analytical reporting. They define measures, dimensions, filters, and aggregation logic directly at the database level. These queries integrate seamlessly with SAP Analytics Cloud and Fiori analytical apps, delivering high-performance insights without additional data replication.
10. What is Static Code Analysis in ABAP, and why is it important?
Static code analysis examines ABAP source code without execution to identify performance issues, security vulnerabilities, and syntax violations. Tools such as Code Inspector and ABAP Test Cockpit enforce coding standards and best practices. Static analysis improves code quality, reduces defects, and ensures compliance with SAP’s modern development guidelines.
11. How does ABAP support secure application development?
ABAP supports secure development through authorization objects, CDS-based access control, secure RFC communication, and input validation mechanisms. Modern frameworks enforce role-based access and data-level security. Adhering to SAP security guidelines helps prevent unauthorized access, data leakage, and compliance issues in enterprise systems.
12. Explain the difference between Extension Points and Enhancements.
Extension Points define predefined locations in standard SAP code where custom logic can be inserted safely. Enhancements use these points to add functionality without modifying standard objects. This mechanism preserves system integrity, simplifies upgrades, and aligns with SAP’s extensibility strategy.
13. What is the importance of Buffering strategies in high-performance ABAP applications?
Buffering strategies reduce database load by storing frequently accessed data in application server memory. Proper buffering selection depends on data volatility and access frequency. Correct usage improves response times and system throughput, while improper buffering can lead to data inconsistencies and performance degradation.
14. How does ABAP support continuous integration and DevOps practices?
ABAP supports CI and DevOps through tools like abapGit, ABAP Unit, and transport automation. These tools enable version control, automated testing, and streamlined deployment pipelines. Integrating ABAP development into DevOps workflows improves delivery speed, reliability, and collaboration.
15. What are the key challenges in migrating custom ABAP code to S/4HANA?
Key challenges include adapting to the simplified data model, removing obsolete constructs, and optimizing performance for HANA. Custom code must be analyzed using tools like SPAM and Custom Code Migration. Addressing these challenges ensures compatibility, performance gains, and long-term system stability in S/4HANA environments.
Course Schedule
| Dec, 2025 | Weekdays | Mon-Fri | Enquire Now |
| Weekend | Sat-Sun | Enquire Now | |
| Jan, 2026 | Weekdays | Mon-Fri | Enquire Now |
| Weekend | Sat-Sun | Enquire Now |
Related Courses
Related Articles
- Oracle Analytics Cloud: Transforming Business Intelligence in the Cloud Era
- Everything You Need to Know About PingDirectory Administration
- An In-Depth Look at Computational Fluid Dynamics
- Security and Compliance with IBM Websphere Transformation Extender - Essentials
- How Siemens NX Open API Simplifies Customization and Engineering Automation
Related Interview
Related FAQ's
- Instructor-led Live Online Interactive Training
- Project Based Customized Learning
- Fast Track Training Program
- Self-paced learning
- In one-on-one training, you have the flexibility to choose the days, timings, and duration according to your preferences.
- We create a personalized training calendar based on your chosen schedule.
- Complete Live Online Interactive Training of the Course
- After Training Recorded Videos
- Session-wise Learning Material and notes for lifetime
- Practical & Assignments exercises
- Global Course Completion Certificate
- 24x7 after Training Support
Join our Live Instructor-Led online classes delivered by industry experts
Let's Get Started
