The Progress 4GL language remains the most powerful and comprehensive approach to serious business application development. Combined with Progress RDBMS (tm) database and other components of the family Progress OpenEdge (tm) products, Progress 4GL can support you in your build and deploy applications in ways that are matched by no other environment today. By the time you finish this book you will truly competent to build modern applications that take advantage of features that language. And you will use language to build powerful applications business logic, not just a toy demonstration windows you find in other language tutorials. The first group consists of the existing Progress developers who might have made an application in previous releases of the product, when many more recent extensions to the language was not yet available. Although many extraordinary and unique features, Progress 4GL is basically a procedural programming language with most of the same general structure for almost any language.