ABAP Keyword Documentation → ABAP − Reference → Built-In Types, Data Objects, Functions, and Constructors
ABAP provides a set of built-in functions. A built-in function returns a return value for one or more arguments. Built-in functions can be called by functions in certain operand positions.
Built-in functions can be called functionally in certain operand positions. When a built-in function is called in an operand position, the function is executed before the operand is used and the return value of the built-in function is used as the operand, in accordance with its data type.
Other versions: 7.31 | 7.40 | 7.54