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: Mathematical Software, Software Installation, Numerical Analysis, Mathematical Modeling, Trigonometry, Programming Principles, Functional Design, Code Reusability, Data Manipulation, Computational Logic, Linear Algebra, Arithmetic
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Job Control Language (JCL), z/OS, Unix, IBM DB2, Database Management Systems, Mainframe Computing, Unix Shell, Operating System Administration, System Programming, Operating Systems, Unix Commands, System Software, Mainframe Technologies, Data Management, Data Storage Technologies, File Systems, Data Storage, System Configuration, File Management, Transaction Processing
Intermediate · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Unix Shell, Shell Script, Bash (Scripting Language), Unix Commands, Unix, Scripting, Scripting Languages, Command-Line Interface, File I/O, File Systems, Programming Principles, Computer Programming
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Bash (Scripting Language), Shell Script, Linux Commands, Unix Shell, Scripting, Linux, Scripting Languages, Linux Administration, Linux Servers, Remote Access Systems, Data Maintenance, OS Process Management, Computational Logic, File Management, File I/O
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Business Process Automation, IT Automation, Data Presentation, Code Reusability, C# (Programming Language), Data Capture, File I/O, Programming Principles, Scalability
Beginner · Course · 1 - 4 Weeks

Vanderbilt University
Skills you'll gain: Event-Driven Programming, Programming Principles, Computer Programming, Code Reusability, Computational Logic, Distributed Computing, Computer Science, Computational Thinking, Computer Networking, Data Structures, Network Model, Natural Language Processing, Algorithms, Web Services, Problem Solving, Geospatial Information and Technology, Application Programming Interface (API)
Beginner · Course · 1 - 3 Months

Skills you'll gain: Unix, Package and Software Management, Systems Administration, TCP/IP, Data Maintenance, Shell Script, Unix Commands, Operating System Administration, Midrange Computer, Unix Shell, Disaster Recovery, System Software, Patch Management, Hardware Troubleshooting, Operating Systems, Data Storage, Software Installation, OS Process Management, Debugging, System Configuration
Intermediate · Course · 1 - 3 Months

Scrimba
Skills you'll gain: Web Applications, Web Components, Javascript, Program Development, Other Programming Languages, UI Components, Front-End Web Development, Web Development, Object Oriented Programming (OOP)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: PL/SQL, SQL, Business Logic, Stored Procedure, Database Design, Oracle Databases, Database Management, Database Development, Relational Databases, Data Integrity, Scalability
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management, Linux Administration, File Systems, Linux, Linux Servers, User Accounts, Operating System Administration, Linux Commands, User Provisioning, Unix, Bash (Scripting Language), Systems Administration, File Management, TCP/IP, Unix Shell, Data Storage, Unix Commands, Software Installation, General Networking, IBM Cloud
Advanced · Course · 1 - 3 Months

Skills you'll gain: PL/SQL, Oracle Databases, Stored Procedure, SQL, Data Persistence, Database Development, Database Management Systems, Web Services, Data Storage Technologies, Authorization (Computing), File I/O, Debugging, File Management, Network Protocols
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Financial Modeling, Financial Statement Analysis, Financial Statements, Forecasting, Financial Analysis, Depreciation, Financial Forecasting, Business Valuation, Operating Expense, Cash Flow Forecasting, Balance Sheet, Income Statement, Operational Analysis, Accounts Payable, Equities, Financial Data, Cash Flows, Case Studies
Mixed · Course · 1 - 4 Weeks