摘要
本文讨论了在ＰｏｗｅｒＢｕｉｌｄｅｒ中动态查询机理，并详细介绍了三种较实用的，为满足用户需要，可无限制查询表中内容的三种多条件通用查询方法。
Dynamic retrieval in PowerBuilder has been discussed in this paper and three methods have been introduced in order to serve the needs of users who want to retrieve rows infinitely in database
