Natural Subroutine Example - Natural-scripting Typing CST Test

Primary Use Cases

• ▸Automating enterprise business processes
• ▸Building database-centric applications on mainframes
• ▸Creating batch jobs for reporting and transaction processing
• ▸Rapid prototyping of business logic applications
• ▸Integrating with legacy systems and middleware

Notable Features

• ▸English-like syntax for easier readability
• ▸Seamless integration with Adabas databases
• ▸Supports batch, online, and event-driven applications
• ▸High-level procedural abstractions for rapid development
• ▸Modularization via subprograms and functions

Origin & Creator

Developed by Software AG in the 1970s as a high-level language to simplify application development on mainframe and later client-server systems.

Industrial Note

Commonly used in banking, insurance, and logistics industries for large-scale transaction processing, often interfacing with Adabas or other enterprise databases.

Quick Explain

• ▸Natural is a 4GL (Fourth Generation Language) designed for rapid application development.
• ▸It provides procedural constructs and some modularization capabilities.
• ▸Widely used for database-driven business applications on mainframes and server environments.
• ▸Supports event-driven and batch processing tasks.
• ▸Ideal for enterprises needing maintainable, database-integrated solutions.

Core Features

• ▸Strong support for database access and record handling
• ▸Procedural programming constructs (IF, PERFORM, LOOP)
• ▸Error handling and transaction management
• ▸Callable subprograms for reusable logic
• ▸Integration with batch and online environments

Learning Path

• ▸Learn Natural syntax and program structure
• ▸Understand database integration with Adabas
• ▸Practice writing modular subprograms
• ▸Explore batch and online processing
• ▸Master enterprise integration patterns and workflow automation

Practical Examples

• ▸Generating daily banking transaction reports
• ▸Validating insurance claims in batch
• ▸Updating master customer records in Adabas
• ▸Automating payroll calculations and data transfers
• ▸Integrating with legacy ERP systems for inventory updates

Comparisons

• ▸Natural vs COBOL: Natural is higher-level and faster to develop
• ▸Natural vs Java: Natural is database-centric, Java is general-purpose
• ▸Natural vs RPG: Natural is procedural 4GL, RPG often tied to IBM i systems
• ▸Batch vs Online Natural programs: batch for reports, online for real-time interaction
• ▸Natural vs modern scripting: Natural excels in legacy enterprise environments

Strengths

• ▸Rapid development for business applications
• ▸Readable and maintainable syntax
• ▸Efficient database operations for large datasets
• ▸Mature, stable language with decades of use
• ▸Compatible with legacy mainframe and server systems

Limitations

• ▸Proprietary, mainly tied to Software AG ecosystem
• ▸Limited modern IDE and tooling support compared to contemporary languages
• ▸Steep learning curve for newcomers unfamiliar with 4GLs
• ▸Less community support than mainstream languages
• ▸Primarily suited for database-centric applications, not general-purpose programming

When NOT to Use

• ▸New web applications or microservices
• ▸High-performance computing tasks
• ▸Non-database-centric scripting
• ▸Applications requiring modern GUI frameworks
• ▸Rapid prototyping outside mainframe or Natural ecosystem

Cheat Sheet

• ▸READ/WRITE -> database operations
• ▸IF/ELSE -> conditional logic
• ▸PERFORM -> call subprogram
• ▸DEFINE DATA -> declare variables
• ▸ON ERROR -> error handling

FAQ

• ▸Is Natural still used today? -> Yes, in enterprise and mainframe environments.
• ▸Can Natural integrate with modern systems? -> Yes, via EntireX or APIs.
• ▸Is Natural object-oriented? -> Mostly procedural, some modularization.
• ▸Can I run Natural outside mainframes? -> Yes, server-based environments supported.
• ▸Is learning Natural useful today? -> Valuable for maintaining legacy enterprise applications.

30-Day Skill Plan

• ▸Week 1: Basic syntax, variables, and control flow
• ▸Week 2: Database reads, writes, and simple reports
• ▸Week 3: Subprograms and modular coding
• ▸Week 4: Batch processing and transaction management
• ▸Week 5: Integration, optimization, and best practices

Final Summary

• ▸Natural Scripting is a 4GL language for database-driven enterprise applications.
• ▸Supports batch, online, and event-driven processing.
• ▸Highly readable and modular for rapid business logic development.
• ▸Integrated with Adabas and other enterprise databases.
• ▸Still relevant for legacy system maintenance and enterprise automation.

Project Structure

• ▸Source Natural programs (.NAT or .PRG files)
• ▸Subprograms and modules for reusable logic
• ▸Database definitions and views
• ▸Job control or scheduling scripts for batch processing
• ▸Documentation of logic and data flow

Monetization

• ▸Legacy Natural application support
• ▸Enterprise system integration consulting
• ▸Workflow automation for mainframe systems
• ▸Reporting and analytics development
• ▸Modernization and migration services

Productivity Tips

• ▸Use subprograms for reusable logic
• ▸Keep database operations efficient
• ▸Document business rules clearly
• ▸Test incrementally in batch or online environment
• ▸Optimize loops and conditional processing

Basic Concepts

• ▸Natural Objects: variables, arrays, and structures
• ▸Subprograms and functions for modularity
• ▸Database access via direct read/write or view definitions
• ▸Control flow: IF, PERFORM, LOOP, GOTO
• ▸Error handling via ON ERROR or transaction rollback

Official Docs

• ▸https://documentation.softwareag.com/natural
• ▸https://www.softwareag.com/en_corporate/products/natural.html
• ▸https://techcommunity.softwareag.com