COBOL courses can help you learn programming fundamentals, data processing, file handling, and business application development. You can build skills in debugging, optimizing code, and working with legacy systems. Many courses introduce tools like IBM's Enterprise COBOL and Micro Focus Visual COBOL, that support maintaining and modernizing existing applications in various industries. You'll also explore concepts such as structured programming, report generation, and database integration, all of which are crucial for effective COBOL programming.

Skills you'll gain: SQL, Oracle Databases, Database Application, Database Development, Database Design, Database Systems, Data Modeling, Database Theory, Database Management, Relational Databases, Data Integrity, Database Management Systems, Stored Procedure, Data Validation, Data Maintenance, Transaction Processing
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Shell Script, Unix Shell, File Management, User Accounts, Operating System Administration, Unix, Package and Software Management, Systems Administration, File Systems, TCP/IP, Data Maintenance, User Provisioning, Midrange Computer, Unix Commands, System Monitoring, Scripting, Disaster Recovery, System Software, System Configuration, Data Centers
★ 4.7 (29) · Intermediate · Specialization · 3 - 6 Months

Logical Operations
Skills you'll gain: Excel Macros, Microsoft Excel, Excel Formulas, Data Transformation, Data Import/Export, File I/O, Data Wrangling, Extensible Markup Language (XML), Data Manipulation, Visual Basic (Programming Language), Spreadsheet Software, Automation, Microsoft 365, Microsoft Office, Data Science, Query Languages, File Management, Debugging, Performance Improvement, Computer Programming
Intermediate · Specialization · 3 - 6 Months

University of California, Santa Cruz
Skills you'll gain: C++ (Programming Language), Go (Programming Language), File I/O, Data Structures, C and C++, Object Oriented Programming (OOP), Object Oriented Design, Programming Principles, Software Design Patterns, Debugging, Computer Programming, Unit Testing, C (Programming Language), Software Design, Program Development, Algorithms, Graph Theory, Software Testing, Computer Science, Computational Logic
★ 4.5 (9.6K) · Intermediate · Specialization · 3 - 6 Months

Edureka
Skills you'll gain: Model Context Protocol, Claude Code, Vibe coding, Generative AI Agents, LLM Application, AI Workflows, AI Orchestration, Agentic Workflows, GitHub Copilot, AI Enablement, AI Security, Prompt Engineering, Code Review, Prompt Patterns, Software Development, Web Applications, Software Testing, Security Testing, Software Engineering, Web Development
★ 4.7 (6) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Generative AI, Cloud Computing Architecture, Generative AI Agents, Cloud Deployment, Artificial Intelligence and Machine Learning (AI/ML), Cloud Services, Database Management Systems, Artificial Intelligence, Data Strategy, Information Management, Relational Databases, Programming Principles, Data Storage Technologies, Cross Platform Development, Package and Software Management, Data-Driven Decision-Making, Computer Programming, Other Programming Languages
★ 4.7 (465) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Node.JS, Restful API, Database Design, Database Development, Database Application, NoSQL, MongoDB, Back-End Web Development, Performance Tuning, API Design, Cloud Applications, Relational Databases, Authentications, Server Side, Application Programming Interface (API), Cloud Development, Cloud Deployment, Middleware, Scalability, Javascript
★ 4.5 (51) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Systems Development Life Cycle, Software Development Life Cycle, z/OS, COBOL (Programming Language), Unit Testing, Systems Analysis, Systems Development, Pseudocode, Program Development, Software Development Methodologies, Agile Methodology, Software Development, Software Design, Agile Software Development, Systems Architecture, Mainframe Computing, Scrum (Software Development), Test Planning, Mainframe Technologies, Software Testing
★ 4.2 (71) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Vibe coding, Prompt Engineering, Authentications, LLM Application, AI Integrations, AI Workflows, User Interface (UI), Application Deployment, Full-Stack Web Development, Application Development, No-Code Development, Generative AI, Web Applications, Authorization (Computing), Back-End Web Development, System Design and Implementation, Frontend Performance, Software Development Life Cycle, Database Management, Problem Solving
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Data Storytelling, Data Presentation, Interactive Data Visualization, Data Visualization Software, Dashboard, Data Visualization, Dashboard Creation, IBM Cognos Analytics, Pivot Tables And Charts, Microsoft Excel, Tree Maps, Scatter Plots, Histogram, Data Analysis
★ 4.7 (4.5K) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Unified Modeling Language, File I/O, System Programming, Visual Basic (Programming Language), System Software, Hardware Architecture, Databases, Relational Databases, Algorithms, Computer Architecture, Network Security, Computer Hardware, SQL, Development Environment, Data Structures, Object Oriented Programming (OOP), Object Oriented Design, Program Development, Computer Programming, Microsoft Development Tools
★ 4.6 (171) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Unix Shell, Unix Commands, Unix, Shell Script, Command-Line Interface, Remote Access Systems, Scripting, Systems Administration, Operating System Administration, File I/O, IT Automation, User Accounts, File Systems, System Monitoring, Operating Systems, File Management, Performance Tuning, User Provisioning, OS Process Management, Authorization (Computing)
★ 4.8 (61) · Beginner · Specialization · 1 - 3 Months