Powerbuilder9.0中数据库事务控制的研究

The research of Transaction Control in Powerbuilder Programming

数据库事务操作是数据库应用程序开发中非常重要的操作,通过正确的事务操作可以控制数据的完整性。本文作者在实践教学的基础上给出了在PB9.0环境下正确开始一个事务的语句,并且给出了多个数据窗口事务隔离的方法,在此基础上给出了判断某个数据库操作正确执行与否的方法。这些基本技术对于编写稳定、安全的数据库应用程序是非常重要的。本文的若干结论具有重要的实践指导意义。

Database Transaction manipulation is very important in database programming, The data＇ s integrity can be retained by correct transaction manipulation. Firstly, this article gives scripts how to correctly begin a transaction in PowerBuilder 9,0 development environment based on the author＇ s teaching experience. Secondly, this article gives a way to insulate the transaction when more than one datawindow control is used and brings forward a technique to judge whether the database editing phrase is correctly executed which is the basic and important technique to manipulate transaction to design good database program. The argumentations and techniques discussed in this article have instructive significance in programming practice.