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SAP ABAP Interview Questions and Answers for 10 Years Experienced

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SAP ABAP Interview Questions and Answers for 10 Years Experienced

This post will helpful for SAP ABAP experienced candidates who may have 3,4 5, 6,7, and 10 years of experience, all of them can be follow this interview pattern for their successful interview. 






















First, start with ABAP Data dictionary interview Questions which are very important to answers fundamental concepts of ABAP, otherwise, you can fail in the first five minutes of the interview. Analyze deeply concepts of Data Dictionary.

What is Data Dictionary in SAP?

We use the ABAP Dictionary to create and manage data definitions (metadata). The ABAP Dictionary allows a central description of all the data used in the system without redundancies. New or modified information is automatically updated for all the system components. It ensures data integrity, data consistency, and data security.

What are the features or important object types in the Data Dictionary?

Tables
Tables are defined in the ABAP Dictionary independently of the database.
Views
Views are logical views of more than one table.
Types
The structure of a type can be defined globally in ABAP programs.
Lock objects
These objects are used to synchronize access to the same data by more than one user.
Domains
Different fields having the same technology type can be combined in domains.

What are the Data Elements in Data Dictionary?


We use data elements to define the type of a table field, structure component, or the row type of a table type.

What are the foreign keys in the Data Dictionary?


We use foreign keys to define relationships between tables in the ABAP Dictionary, create value checks for input fields, and link several tables in a view or a lock object.

What is Search helps in the Data Dictionary?


Search helps are objects that you can use to assign input help (F4 Help) to screen fields. You can do this by creating a search help in the ABAP Dictionary and attaching it to the corresponding screen field.

There are two types of search helps:

1.Elementary search helps.

2.Collective search helps.

What is the database utility?

The database utility allows you to edit (create, delete and adjust to changes to their definition in the ABAP Dictionary) database objects derived from objects of the ABAP Dictionary.

What are Pooled and Cluster Tables?


Table pools and table clusters are special table types in the ABAP Dictionary. The data from many different tables can be stored together in a table pool or table cluster. Tables assigned to a table pool or table cluster are indicated as pooled tables or cluster tables.

We must use a table pool or table cluster exclusively for storing internal control information (screen sequences, program parameters, temporary data, continuous texts such as documentation). Data of commercial relevance is stored in transparent tables.

What are the layers of the SAP System in R/3?

The external layer.
The ABAP/4 layer.
The database layer.

What is a Data Class?


The Data class determines which tablespace the table is stored when it is created in the database.

There are the following data classes:

APPL0 (master data): Data that is seldom changed.

APPL1 (transaction data): Data that is frequently changed.

APPL2 (organizational data): Customizing data that is defined when the system is installed and seldom changed.

What is the Size Category?


The Size category describes the probable space requirement of the table in the database.

How many types of size categories and data classes are there?


There are five size categories (0-4) and 11 data classes only three of which are appropriate for application tables:

• APPL0- Master data (data frequently accessed but rarely updated).

•APPL1- Transaction data (data that is changed frequently).

•APPL2- Organizational data (customizing data that is entered when the system is configured and then rarely changed).

The other two types are:

USR

USR1 – Intended for customer’s own developments.

What are the control tables?

The values specified for the size category and data class are mapped to database-specific values via control tables.

What is the function of the transport system and workbench organizer?


The function of the transport system and the Workbench Organizer is to control any changes made to objects of the ABAP/4 Development Workbench and to transport these changes between different SAP systems.

How long it will take to learn SAP ABAP


Conclusion

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