Fundamentals of 4GL Programming introduce the basic concepts of fourth-generation programming languages used for building business applications quickly and efficiently. In Progress 4GL (OpenEdge ABL), developers focus on writing high-level code that directly interacts with databases and business logic. It includes understanding variables, data types, loops, conditions, procedures, and transactions. The language simplifies database operations with built-in commands for querying and updating data. It also supports structured programming and basic object-oriented concepts. Fundamentals of 4GL Programming help developers build scalable, data-driven enterprise applications with reduced coding complexity and faster development cycles.