In this blog, I have listed most common and latest interview questions related to SAP ABAP on Hana. I have divided these into multiple parts:
Sap Abap on Hana most common and latest interview questions - Part 1
Sap Abap on Hana most common and latest interview questions - Part 2
Sap Abap on Hana most common and latest interview questions - Part 3
Sap Abap on Hana most common and latest interview questions - Part 4
Sap Abap on Hana most common and latest interview questions - Part 5
1. What is ABAP on HANA?
Answer: ABAP on HANA is a development platform that allows SAP ABAP developers to leverage the power of SAP HANA in developing high-performance applications.
2. What are the benefits of ABAP on HANA?
Answer: The benefits of ABAP on HANA include improved performance, real-time analytics, simplified data models, reduced data redundancy, and enhanced application development capabilities.
3. What is the difference between ABAP and ABAP on HANA?
Answer: ABAP is the programming language used in SAP systems, while ABAP on HANA refers to the development approach that specifically utilizes the capabilities of the SAP HANA database.
4. How does ABAP on HANA leverage the in-memory computing capabilities?
Answer: ABAP on HANA leverages the in-memory computing capabilities of SAP HANA by storing data in memory, enabling faster data access and processing for improved performance.
5. What are the new data types introduced in ABAP on HANA?
Answer: ABAP on HANA introduces new data types such as HANA table types (HASHED, INDEX, and SORTED), CDS (Core Data Services) views, and HANA-specific data types like HANA Date, Time, and Timestamp.
6. Explain the concept of CDS (Core Data Services) in ABAP on HANA.
Answer: CDS is a key feature in ABAP on HANA that allows developers to define semantically rich data models and define database views using ABAP annotations.
7. What is AMDP (ABAP Managed Database Procedures) in ABAP on HANA?
Answer: AMDP allows ABAP developers to write database procedures using SQLScript directly in ABAP code, enabling efficient data processing on the database layer.
8. How do you define CDS views in ABAP on HANA?
Answer: CDS views are defined using ABAP annotations and specific keywords like DEFINE VIEW, SELECT, and associations to define relationships between entities.
9. What is the purpose of SAP HANA-specific SQL functions in ABAP on HANA?
Answer: SAP HANA-specific SQL functions, such as aggregation and calculation functions, allow developers to perform complex calculations and aggregations directly in the database layer for improved performance.
10. How do you optimize ABAP code for performance in ABAP on HANA?
Answer: To optimize ABAP code for performance in ABAP on HANA, you can leverage techniques like push-down processing, using AMDP, CDS views, and SQLScript, and avoiding unnecessary data transformations and iterations.
11. What are the different types of joins available in ABAP on HANA?
Answer: ABAP on HANA supports different types of joins, including INNER JOIN, LEFT OUTER JOIN, RIGHT OUTER JOIN, and FULL OUTER JOIN, to combine data from multiple tables or views.
12. Explain the concept of SAP HANA-Optimized InfoCubes in ABAP on HANA.
Answer: SAP HANA-Optimized InfoCubes are specific data models designed for faster data storage and retrieval in ABAP on HANA, leveraging the performance advantages of the SAP HANA database.
13. What are the key considerations for data modeling in ABAP on HANA?
Answer: When data modeling in ABAP on HANA, key considerations include reducing redundancy, leveraging CDS views for a semantic data model, and optimizing data access patterns for improved performance.
14. What is the difference between Open SQL and Native SQL in ABAP on HANA?
Answer: Open SQL is a database-independent SQL dialect supported by ABAP, while Native SQL allows direct execution of database-specific SQL statements in ABAP on HANA.
15. How do you create indexes on database tables in ABAP on HANA?
Answer: In ABAP on HANA, you can create indexes on database tables using the ABAP Dictionary transaction (SE11) or by specifying index definitions in CDS views.
16. What is the purpose of SAP HANA-specific data access techniques like SAP HANA SQLScript and SAP HANA ADBC?
Answer: SAP HANA SQLScript and SAP HANA ADBC provide additional data access options in ABAP on HANA, allowing developers to leverage advanced database capabilities for complex data processing and integration scenarios.
17. Explain the concept of SQLScript in ABAP on HANA.
Answer: SQLScript is a scripting language specific to SAP HANA that allows developers to write advanced database procedures and algorithms directly in the database layer for optimized performance.
18. What are the advantages of using AMDP (ABAP Managed Database Procedures) over traditional ABAP coding in ABAP on HANA?
Answer: AMDP allows direct execution of database procedures in ABAP on HANA, providing performance advantages by minimizing data transfers between the application and database layers.
19. How do you consume external data sources like web services in ABAP on HANA?
Answer: In ABAP on HANA, you can consume external data sources like web services using techniques like ABAP RESTful Programming Model, OData services, and HTTP protocols.
20. What are the best practices for ABAP development in ABAP on HANA?
Answer: Best practices for ABAP development in ABAP on HANA include leveraging CDS views, minimizing data transfers between application and database layers
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