PowerBuilder Introduction and application-database system principle

PowerBuilder is an enterprise-class database front-end application and multi-tier architecture development tool, user-friendly interface, powerful data window, is an integrated development environment.

• Characteristics of PB

1. Using object-oriented programming methods and event-driven work principles.
2. Supports cross-platform development with an open Database connectivity system.
3. It's easy to write statements without having to memorize the various statement formats, and PB provides almost all of the commonly used programming statement templates to easily and quickly insert various statements.
4. humanized design, to provide users with convenient and quick Statement block Clipboard tool, greatly improve the programmer's programming efficiency.
5. A unique library file artboard and a hierarchical system resource tree.
6. The system provides 11 different "display style" data windows to meet different user needs.
7. Provides a normalized Workspace object that makes it easier for programmers to manage created application objects.

• PB Development Space

PB development space has three levels: Workspace (working space), Target (destination), library (libraries).

• PB-to-database connection steps

1. Establish an ODBC data source.
2. Create a database description file.
3. Connect to the database using the Connect command.

Note: This tool is too outdated, there is no need to learn, only for examination preparation.

PowerBuilder Introduction and application-database system principle