【正文】
Soft manufacturer has been bought by sybase,it pletely according to client/server architecture design, research on client/server structure, it is used in the client database application,as the development of using PowerBuilder objectoriented and visualization technology, providing visual application development environment, so that we can use convenient PowerBuilder to develop the backend server using the data and database management system of database applications. At present, the rapid development of work technology,development and OLE, crossplatform,OCX technology, such as in the PowerBuilder PowerBuilder to these techniques provide a full support. Anyhow, in database development tools PowerBuilder is one of very good one, we can use it to develop powerful database applications. Provides for PowerBuilder most relational database management system support, because in the application of PowerBuilder part of database access generally adopted international standard SQL database query language,make use of the development application can PowerBuilder or do not do small changes can be in different backend database management system. Using PowerBuilder development is the application is independent of the server database management system. And most of the WINDOWS applications,eventdriven PowerBuilder also works. In this way of working, the execution of the program has no fixed process, the code for various events, when the program is running,it can be accepted from system, user or other applications,then trigger events executes events with the eventdriven objectoriented technology is closely related to PowerBuilder in application,accept events is often the various kinds of visual programming interface. PowerBuilder is a kind of objectoriented development tools and various WINDOWS application window, menu, the mon control all in one PowerBuilder object. We can also PowerBuilder in creating your own user objects. Special PowerBuilder to point out of objectoriented method provides all kinds of technical support,we can use the object of objectori