ABL provides built-in data types, built-in class data types, and user-defined class data types. References to built-in data types follow these rules:
Like most other keywords, references to specific built-in data types appear in all UPPERCASE, using a font that is appropriate to the context; no uppercase reference ever includes or implies any data type other than itself
Wherever integer appears, this is a reference to the INTEGER or INT64 data type
Wherever character appears, this is a reference to the CHARACTER, LONGCHAR, or CLOB data type
Wherever decimal appears, this is a reference to the DECIMAL data type
Wherever numeric appears, this is a reference to the INTEGER, INT64, or DECIMAL data type
References to built-in class data types appear in mixed case with initial caps, for example, Progress.Lang.Object. References to user-defined class data types appear in mixed case, as specified for a given application example.
Like most other keywords, references to specific built-in data types appear in all UPPERCASE, using a font that is appropriate to the context; no uppercase reference ever includes or implies any data type other than itself