Interview Hub
ABAP Interview Questions
Core ABAP questions for developers preparing for technical interviews and hands-on delivery work.
How do you optimize an ABAP SELECT statement for large datasets? 1
Beginner
Use indexed access, minimize database round trips and select only the required columns. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
Explain the difference between internal table operations using LOOP and READ TABLE. 2
Intermediate
Prefer modern ABAP constructs, limit nested loops and use sorted or hashed tables where appropriate. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
How do you handle exceptions in ABAP OO classes? 3
Advanced
Use exception classes, structured error handling and clear logging to make the program robust. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
What are the key differences between classic ABAP and ABAP Objects? 4
Beginner
Separate business logic into classes, use interfaces and keep report logic thin for easier testing. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
How would you design a reusable function module for a reporting scenario? 5
Intermediate
Make the component reusable by parameterizing inputs, returning structured results and documenting side effects. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
What is the purpose of table buffering in ABAP? 6
Advanced
Use indexed access, minimize database round trips and select only the required columns. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
How do you debug a performance issue in an ABAP report? 7
Beginner
Prefer modern ABAP constructs, limit nested loops and use sorted or hashed tables where appropriate. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
Describe how you would structure a modular ABAP program for maintainability. 8
Intermediate
Use exception classes, structured error handling and clear logging to make the program robust. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
How do you choose between SELECT SINGLE and SELECT INTO TABLE? 9
Advanced
Separate business logic into classes, use interfaces and keep report logic thin for easier testing. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
How do you implement dynamic WHERE clauses safely in ABAP? 10
Beginner
Make the component reusable by parameterizing inputs, returning structured results and documenting side effects. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
How do you optimize an ABAP SELECT statement for large datasets? 11
Intermediate
Use indexed access, minimize database round trips and select only the required columns. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
Explain the difference between internal table operations using LOOP and READ TABLE. 12
Advanced
Prefer modern ABAP constructs, limit nested loops and use sorted or hashed tables where appropriate. In practice, this means validating inputs and keeping the logic easy to trace during support incidents.
Growth note
This section is designed to grow into a full interview library with scenario answers, interviewer expectations and practical examples for each topic.