Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Programming Guide


Using variables, structures, literals, and constants

Most high-level programming languages share the concept of data being represented as variables, structures (group items), literals, or constants.

The data in a COBOL program can be alphabetic, alphanumeric, double-byte character set (DBCS), national, or numeric. You can also define index-names and data items described as USAGE POINTER, USAGE FUNCTION-POINTER, USAGE PROCEDURE-POINTER, or USAGE OBJECT REFERENCE. You place all data definitions in the DATA DIVISION of your program.

related references  
Classes and categories of data (Enterprise COBOL Language Reference)


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