Top 30 SAP ABAP Interview Questions and Answers

Enterprise Resource Planning (ERP) software, particularly SAP, is used by large companies to handle day-to-day operations analysis. Software application programming in the SAP environment is known as ABAP. The acronym ABAP stands for “advanced business application programming” in SAP Course. Utilizing SAP ABAP, a fourth-generation application-specific programming language, is essential when developing an application for the SAP R/3 system. The applications developed in ABAP/4 will be usable in SAP.

If you are looking for a position with an IT firm that uses SAP, you should get ready with the most asked questions in the interview. I researched and gathered all the essential SAP ABAP Interview Questions. These interview questions will turn you into a self-assured professional SAP ABAP Developer, regardless of your level of experience with the language.

Top 30 SAP ABAP Interview Questions and Answers

1. In what ways can you access the SAP system?
Ans: There are two entry points for users to a SAP system.

• In the SAP GUI
• Using an online browser

We refer to this as the front end. The user cannot install the application database server. They can install only the front end. Requests from users are received by the front end, which then communicates with the application and database servers.

2. Can you explain Pooled and Cluster tables?
Ans: There are two distinct kinds of tables: pooled and cluster tables. With a table pool or cluster, we can consolidate data from multiple tables into one. Cluster or pooled tables describe tables that are part of a more extensive data set.
We should employ a table pool to store data about internal controls. Display sequences, program settings, transient data, and ongoing texts like manuals are all examples of control information. Transparent tables contain data that is relevant to businesses.

3. Describe SAP ABAP’s three-tier architecture.
Ans: In SAP ABAP, an input device is part of the presentation layer. This presentation layer controls the SAP system. A mobile phone or a simple web browser might serve as the presentation.

The Application Server is crucial in facilitating the process. The Application server hosts many instances of this processing system. On a separate server, there is a database layer that the application server talks to.

4. What does an ABAP Data dictionary mean?
Ans: When creating ABAP, the data dictionary is vital for explaining the reasoning behind the structures of particular objects. A data dictionary is useful in creating a programming language or application. Tables with a data dictionary illustrate the relational database.

5. How does a Function Module differ from a Function Group?
Ans: The Function Module and Function Group are logically related. Here are several ways in which Function Modules differ from Function Groups: –

• A wide variety of applications can make use of Function Modules. You can’t call function groups.
• In contrast to Function SAP Module, which do not serve as containers, Function Groups do just that.

6. What are the work area and internal tables?
Ans: Temporary memory locations used to store data during runtime include internal tables and work areas. These tables are temporary and only exist while the program is running. Users can reorganize the contents of database tables according to their needs by performing table operations on subsets of those tables.

7. Can you explain a Foreign Key relationship?
Ans: The field level is the proper place to declare a foreign key relationship, which users can establish between tables. Foreign keys ensure Data consistency. It is necessary to compare the inputted data with preexisting data. When creating a foreign key relationship, be sure to provide the Cardinality. Their cardinality represents the number of possible dependent and referenced records.

8. List the different types of database integrity.
Ans: Below are the several kinds of database integrity.

• Semantic Integrity
• Primary Key Integrity
• Relational Integrity
• Value Set Integrity
• Operational Integrity
• Foreign Key Integrity

9. Find out how SAP memory differs from ABAP memory.
Ans: The ABAP memory is viewed as a memory region when accessing the ABAP program from within the internal part. The program messages contain data storage. This data transfer between programs is made possible by these program calls.
The SAP Memory region is helpful for all SAP GUI sessions. It is easy to move data between different sessions of the programming system.

10. What do the Events in the Reports mean?
Ans: ALV Download Report Occurrences

• Load Of Program
• Initialization
• At-Selection Screen
• At-Selection Screen Output
• Start-Of-Selection
• End-Of-Selection
• Top-Of-Page
• End-Of-Page

11. Please tell me about ABAP Web Dynpro.
Ans: Web Dynpro (WD) makes it easy to develop web-based applications in SAP using SAP development concepts and methodologies.
It connects to SAP R/3 systems in the background for data access and reporting and provides a web user interface on the front end. The ABAP Workbench combines a graphical programming environment with a runtime environment that contains particular development tools.

12. Can you explain SAP Smart Forms?
Ans: One tool for printing and transmitting papers is SAP Smart Forms. Website documents, e-mails, PDFs, and forms can all benefit from its usage. This tool provides an interface for creating and managing a form’s structure and logic.

Financial Accounting (FI), Human Resources (HR), Sales and Distribution (SD), and Customer Relationship Management (CRM) are just a few of the business activities that benefit from SAP’s form selection. You can modify forms with the aid of essential graphical tools instead of having to use any programming tool with this tool. It means that these smart forms can be quickly configured with data for a business process by a user who needs programming experience.

13. In SAP ABAP, what exactly are “interfaces”?
Ans: As the SAP ABAP interface is distinct from the class, it is impossible to implement it similarly. It lays up the required method declarations for a class to implement without going into depth implementation methods.

Multiple inheritance is made possible with the help of the interface. A class can inherit more than one interface, called multiple inheritance. Because methods stated in an inheritance interface might take on different behaviors depending on the class, this interface can be a foundation for polymorphism.

14. How does SAP ABAP classify various kinds of data?
Ans: SAP ABAP supports multiple data class types, each with a unique purpose. The primary SAP ABAP data classes are as follows:

• Master Data: Information that is rarely updated is considered master data. It includes information about customers and vendors, materials, and other reference data. Documents about business transactions, including purchase orders, sales orders, invoices, and more, make up transaction data.
• Organization Data: This type of data shows the structure of a business, including its departments, units, and other internal components.
• System Data: It stores configuration settings, system-specific characteristics, and other information about the SAP system.

15. Is SAP a database type?
Ans: No. The truth is that SAP is a program that integrates with various databases, including Oracle and Microsoft SQL Server.

16. Can I manage many SAP sessions simultaneously?
Ans: You are limited to working on up to six sessions for any client at any time.

17. What does the word “transaction” mean in SAP?
Ans: In the context of SAP, “transaction” merely denotes a series of linked dialogue steps.

18. What is the best way to format the data before writing the report’s statement?
Ans: It is possible to format the report output using the loop event.

• at first
• .at new
• .at last

19. when is the appropriate time to employ end-of-selection?
Ans: The end of the selection event is commonly used in the HR-ABAP code. Data is retrieved and printed on the list at the beginning of the selection event in the HR-ABAP code. Moreover, everything is done at the end of the selection event.

20. Describe how OOABAP differs from ABAP. Where does OOABAP come into play?
Ans: ABAP helps to develop conventional R/3 programs. At the same time, OOABAP creates BSP/PCUI applications and anything else involving objects, such as SmartForms and BADIs.

21. Describe the Table Buffer. Which table types made use of this Buffer?
Ans: Table buffer refers to the data stored in the application server’s memory area. While buffer generally refers to the memory region. The application server is where you will get data when you query a database table. Buffering is possible for transparent and pool tables but not for cluster tables.

22. Can you tell me how Lock Objects work?
Ans: Multiple programs can access the same data simultaneously thanks to a unique ABAP feature called Lock Objects. Accessing the data records is made easier with specific programs. Using Lock Object helps prevent discrepancies during data inserts into the database.

23. What is the purpose of Insert and Append statements in SAP ABAP?
Ans: The Append statement helps add records to the specified work area at the end of the internal table. With the help of an Insert Statement, the user can add a record at a given spot.

24. Identify the different parts of Technical Specifications.
Ans: Five parts of technical specifications. –

• Data Class
• Buffering Permission
• Size Category
• Login
• Buffering Type

25. Describe variables.
Ans: Although variables are defined in the measurement query specification, they remain empty until the results are imported into the workbooks.

26. Describe the several types of variables
Ans: Among the variables utilized in a wide range of applications are:

• Characteristics variable
• Formulas
• Hierarchies
• Hierarchy nodes
• Processing Types
• Replacement Path
• Text
• User entry/default type

27. List some of the cons of SAP.
Ans: Here are a few of SAP’s drawbacks:

• Quite pricey.
• Needs people with specialized expertise
• Requires a long time to implement
• interfaces are complex.

28. Do you know t-code names and program value locations? How to find a complete list of SAP t-codes?
Ans: To view the TSTC transaction table, use the st11 transaction code. Moreover, to create a new t-code for system usage, use the se93 transaction code.

29. Which ABAP/4 editors are available?
Ans: Here are the two editors for ABAP/4:
SE38: The ABAP/4 editor is where all the object development happens, and SE38 lets you create programs, see reports online, and do it all.
SE80: It helps to create BSP (Business Server Page) applications, programs, classes, modules, pools, and function groups, among other things.

30. When can you schedule the call transaction and BDC session?
Ans: A call transaction can be utilized in cases with little data. Sessions are an excellent tool for dealing with large amounts of data.

Kodakco Can Help You Learn SAP ABAP

Recent college graduates seeking SAP employment must demonstrate an understanding of the theory and core concepts for any specialized role. But a, seasoned candidate will know their way around the application process and fully grasp the theoretical underpinnings. You can consider that many SAP ABAP Interview Questions will revolve around your previous work experience and the projects and roles you have held.

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