What are the different types of data dictionaries in SAP ABAP?

Types of Data Dictionaries in SAP ABAP

In SAP ABAP, there are several types of data dictionaries. These include:

1. Database Data Dictionary: This type of data dictionary is used to define and manage the structure of database tables in SAP systems.
2. ABAP Dictionary: The ABAP Dictionary is used to define and manage data definitions such as data elements, domains, structures, and table types.
3. Repository Information System (RIS): RIS is used for managing repository objects like programs, function modules, and classes.
4. Function Group Data Dictionary: This type of data dictionary is used to store reusable function modules and subroutines.

It is essential for ABAP developers to have a good understanding of these different types of data dictionaries in order to effectively manage data and create efficient programs within the SAP environment.