摘要
在进行数据库应用程序的设计时,经常会遇到相片、简历之类的字段,与其它类型的字段相比,这类数据有其特殊性,即无边界性。在Power Builder开发环境中,这类数据的处理不是所见即所得的,而是必须通过编程来实现,在PB环境下二进制和大文本信息处理有两种常用方法。
While programming of database application, we often meet the fields like photo and resume, in contrast with other fields this field has its speciality for its boundless .In PowerBuilder environment, to deal with these fields do not operate as 'what you see is what you get', you must achieve it by programming. This article will introduce the two ways to deal with the binary object and large text information in detail in PB Environment.
