TECHNOLOGY INDEX / REFERENCELANGUAGE / BUSINESS DATA / MAINFRAMEPROGRAMMING LANGUAGE
REFERENCE / COBOL

COBOL

COBOL is a programming language designed around readable business logic and precisely described data. Its Data Division defines records through hierarchical entries, picture clauses and storage rules.

WHAT IT DOES / 01

STRUCTURE THAT
OUTLIVES SYSTEMS.

It gives long-running business systems an explicit way to describe, process and exchange fixed business records.

KEY CONCEPTS / 02

THE CORE
IDEAS.

  1. 01

    DATA DIVISION

    Describe files, working storage, linkage data and the hierarchical fields inside each record.

  2. 02

    COPYBOOKS

    Reuse shared record definitions by including source members through the COPY statement.

  3. 03

    PIC & USAGE

    Specify the shape of a field and the physical representation used to store its value.

KEEP EXPLORING / 03

OFFICIAL
RESOURCES.

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