摘要： 结合一个具体的项目实例，介绍了ＰＢ中运用游标对数据库中一类复杂的查询的处理，并给出了具体的实现过程，并且对执行结果进行了评价．

关键词: 游标, 事务项, 记录集, 信息主题, 技术现象

Abstract: The use of cursor in PowerBuilder is discussed in this paper through the project done. In this paper, some special queries which are difficult to dealed with in database are introduced And at the same time the paper givers the realization of the thinking and the comments on the result.