Understanding type definition
This is an introduction to types.
The
TYPE instruction declares a user-defined type, which can be based on:- Primitive data types (
INTEGER,VARCHAR(n)), - Records (
RECORD ... END RECORD,RECORD ... LIKE tabname.*), - Arrays (
DYNAMIC ARRAY OF ...), - Dictionaries (
DICTIONARY OF ...), - Function types (
FUNCTION name(type,...) RETURNS ...)
Once declared, a type can be referenced in the declaration of program variables, or in other types.
Types are typically defined to avoid the repetition of complex structured types.
Tip: User-defined types improve code readability by centralizing data structure
definitions. Consider using
PUBLIC TYPE definitions to share types across modules
with IMPORT FGL.