Learn BANKING-COBOL-VARIANTS with Real Code Examples

Optimize SORT and multi-file reads

Use packed decimal for calculations

Avoid unnecessary CICS I/O

Tune DB2 queries for batch windows

Leverage compiler optimization levels

Enforce RACF/ACF2 dataset permissions

Mask sensitive fields in logs

Use secured MQ channels

Validate all incoming financial messages

Follow PCI-DSS & bank policy compliance

CICS transaction stats

DB2 SQL monitoring

JCL job performance metrics

VSAM I/O analytics

MQ message tracking

Use structured sections

Avoid GO TO spaghetti

Modularize COPYBOOKS

Document business rules explicitly

Enforce peer reviews