【摘要】 Ｍ Ｉ Ｓ系统中的查询问题，长期困扰着开发者和使用者。本文通过一个具体的问题，详述了实现复杂查询的方法，并通过实例加以解释和说明，同时总结了各种方法的特点及适用范围。文中所用方法与实例全部截自本文作者曾经开发过的 Ｍ Ｉ Ｓ应用系统的产品中。更多还原

【Abstract】 The practitioners are often troubled with “Query” problems occurred in MIS. This paper introduces the methods to implement diverse queries and gives samples to explain and comment on them. It also summarizes the proper features and adaptive scopes of these methods.更多还原