Top 20 Most Important SAP ABAP Interview Questions

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  1. What is ABAP? ABAP stands for Advanced Business Application Programming. It is a high-level programming language created by the German software company SAP SE.

  2. What is the difference between a transparent table and a pooled table? A transparent table is a table that has a one-to-one relationship with a physical database table, while a pooled table is a table that has a many-to-one relationship with a physical database table.

  3. What is the difference between a structure and a table? A structure is a data type that consists of a group of fields, while a table is a data type that consists of a group of rows and columns.

  4. What is the difference between a function module and a subroutine? A function module is a self-contained piece of code that can be called from other programs, while a subroutine is a piece of code that is part of a program.

  5. What is the difference between a BDC and an LSMW? A BDC (Batch Data Communication) is a method of transferring data from legacy systems to SAP systems, while an LSMW (Legacy System Migration Workbench) is a tool that can be used to migrate data from legacy systems to SAP systems.

  6. What is the difference between a dialog program and a report program? A dialog program is a program that interacts with the user through a series of screens, while a report program is a program that generates a report based on data in the database.

  7. What is the difference between a classical report and an interactive report? A classical report is a report that generates a list, while an interactive report is a report that allows the user to interact with the data.

  8. What is the difference between a module pool and a dialog program? A module pool is a collection of screens that are used to create a dialog program, while a dialog program is a program that interacts with the user through a series of screens.

  9. What is the difference between a BADI and an enhancement spot? A BADI (Business Add-In) is a mechanism for enhancing the functionality of SAP applications, while an enhancement spot is a predefined point in an SAP application where custom code can be added.

  10. What is the difference between a BAPI and an RFC? A BAPI (Business Application Programming Interface) is a set of interfaces that allow third-party developers to integrate their applications with SAP systems, while an RFC (Remote Function Call) is a mechanism for calling functions in remote systems.

  11. What is the difference between a smart form and a SAP script? A smart form is a tool that can be used to create and maintain forms in SAP systems, while a SAP script is a tool that can be used to create and maintain forms in SAP systems.

  12. What is the difference between a workbench request and a customizing request? A workbench request is a request that contains changes to the ABAP Workbench, while a customizing request is a request that contains changes to the customizing tables in SAP systems.

  13. What is the difference between a transport request and a task? A transport request is a request that contains changes to the objects in an SAP system, while a task is a request that contains changes to the ABAP Workbench.

  14. What is the difference between a user exit and a customer exit? A user exit is a predefined point in an SAP application where custom code can be added, while a customer exit is a predefined point in an SAP application where custom code can be added.

  15. What is the difference between a BTE and a BAdI? A BTE (Business Transaction Event) is a mechanism for enhancing the functionality of SAP applications, while a BAdI (Business Add-In) is a mechanism for enhancing the functionality of SAP applications.

  16. What is the difference between a BDC and a call transaction? A BDC (Batch Data Communication) is a method of transferring data from legacy systems to SAP systems, while a call transaction is a method of executing a transaction in SAP systems.

  17. What is the difference between a BDC and a BAPI? A BDC (Batch Data Communication) is a method of transferring data from legacy systems to SAP systems, while a BAPI (Business Application Programming Interface) is a set of interfaces that allow third-party developers to integrate their applications with SAP systems.

  18. What is the difference between a BDC and an IDoc? A BDC (Batch Data Communication) is a method of transferring data from legacy systems to SAP systems, while an IDoc (Intermediate Document) is a standard data structure used to transfer data between different systems.

  19. What is the difference between a BDC and a batch input session? A BDC (Batch Data Communication) is a method of transferring data from legacy systems to SAP systems, while a batch input session is a method of executing a transaction in SAP systems.

  20. What is the difference between a BDC and a direct input method? A BDC (Batch Data Communication) is a method of transferring data from legacy systems to SAP systems, while a direct input method is a method of executing a transaction in SAP systems.

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