SAP NetWeaver AS ABAP Release 740, ©Copyright 2014 SAP AG. All rights reserved.
Variable and Constant Data Objects
With respect to the changeability of data contents,distinction can be made between variable and constant data objects:
- Variable data objects can change their value at runtime. All data objects
that are not defined by a statement defining data CONSTANTS are variable.
- Constant data objects always retain their initial value. They include
the literals, text symbols, and the constants
declared by CONSTANTS.