Learn COBOL with Real Code Examples

Start with basic COBOL syntax and divisions

Learn PIC data types and file handling

Practice sequential & indexed file operations

Study batch processing with JCL

Explore enterprise-level systems and DB2 integration

Week 1: Syntax & divisions

Week 2: File input/output

Week 3: Batch processing & JCL

Week 4: Complex business logic & DB2

Explain COBOL's four divisions.

What is the PIC clause used for?

Difference between sequential and indexed files?

How does PERFORM differ from CALL?

How do you handle batch input/output?

IDENTIFICATION DIVISION.

DATA DIVISION.

PROCEDURE DIVISION.

PERFORM UNTIL condition ... END-PERFORM.

MOVE value TO variable.

Murach's Mainframe COBOL

COBOL for the 21st Century

Teach Yourself COBOL in 21 Days

COBOL programming for beginners

Mainframe COBOL & JCL tutorials

COBOL file processing guides

ISO COBOL standards

IBM Enterprise COBOL documentation

GnuCOBOL user manual

COBOL/Mainframe Reddit communities

IBM Developer forums

StackOverflow COBOL tag

COBOL programming communities

Mainframe developer groups

Reddit r/mainframe

StackOverflow COBOL tag

IBM Developer forums