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ABAP - Keyword Documentation → ABAP - Reference → Processing Internal Data → Character String and Byte String Processing → Expressions and Functions for String Processing →String Functions
String functions are part of the predefined functions. They are divided into:
Description functions have a numerical result; processing functions have a character-like result.
Parameters that are used by more than one function in the same way are described under Shared Parameters of String Functions.
Note
The program DEMO_EXPRESSIONS shows you examples of how to use string expressions.