Using national data (Unicode) in COBOL

In COBOL for AIX, you can specify national (UTF-16) data in any of several ways.

These types of national data are available:

In addition, you can define national groups that contain only data items that explicitly or implicitly have USAGE NATIONAL, and that behave in the same way as elementary category national data items in most operations.

These declarations affect the amount of storage that is needed.

related references  
Storage of character data  
Classes and categories of data (COBOL for AIX Language Reference)