SAP ABAP Questions and Answers

1. What ensures the integration of all application modules?

Ans: The R/3 basis system guarantees the integration of all application modules. The R/3 basis s/w gives the run time environment to the R/3 applications guarantees ideal integration, characterizes a stable architectural frame for framework upgrades and contains the administration tools for the whole framework. One of the fundamental tasks of the basis framework is to ensure the portability of the entire framework.

2. What are the central interfaces of the R/3 framework?

Ans: Presentation Interface.

Database Interface.

Operating System Interface

3. What are the roll and page zones?

Ans: Roll and page territories are SAP R/3 supports used to store client settings (process requests). The SAP dispatcher appoints process solicitations to work forms as they are lined in the roll and page territories.

Paging region holds data from the application programs.

Move region holds data from past dialog steps and data that depict the customer.

4. What are R/3 Basis configurations?

Ans: A central framework with centrally installed presentation software.

Two-level client/server system with rolled out presentation software.

Two-level client/server system. Application and presentation keep running on a similar computer.

Three-level client/server system. Application, Presentation, and database each keep running on particular PCs.

5. What is a table pool?

Ans: A table pool (or pool) is utilized to combine a few legitimate tables in the ABAP/4 Dictionary. The meaning of a pool comprises no less than two key fields and a long argument field (VARDATA).

6. What are pooled tables?

Ans: These are legitimate tables, which must be relegated to a table pool when they are characterized. Pooled tables can be utilized to store control data.

7. What is a table cluster?

Ans: Cluster tables are exceptional kinds of tables shown in the SAP data dictionary. They are logical tables kept up as records of the ordinary SAP tables, which are ordinarily known as transparent tables. A key advantage of utilizing cluster tables is that data is stored in a compressed format, decreasing memory space and the landscape network load for recovering data from these tables.

8. What are the features of ABAP/4 Dictionary?

Ans: The most vital highlights are:

• Integrated to aABAP/4 Development Workbench.

• Active in the runtime condition.

9. What is a function group?

Ans: A function group is a collection of consistently related modules that offer worldwide data with each other. Every one of the modules in the group is included into a similar fundamental program. Exactly when an ABAP/4 program contains a CALL FUNCTION declaration, the system loads the entire function group in with the program code at runtime. Each function module has a place with a functional group.

10. What are the distinctive techniques for passing data?

Ans: • Calling by reference: During a subroutine call, just the address of the actual parameter is exchanged to the formal parameters. The formal parameter has no memory of its own, and we work with the field of the calling program inside the subroutine. On the off chance that we change the formal parameter, the field substance in the calling program also change.

• Calling by value: During a subroutine call, the formal parameters are made as duplicates of the actual parameters. The formal parameters have their very own memory. Changes to the formal parameters have no impact on the actual parameters.

• Calling by value and result: During a subroutine call, the formal parameters are made as duplicates of the actual parameters. The formal parameters have their own memory space. Changes to the formal parameters are duplicated to the actual parameters toward the finish of the subroutine.

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