【摘要】 针对数据维护程序代码重复、对需求变化适应性差等问题,提出一种以数据库表的元数据为核心的通用数据维护框架。该元数据模型能描述表之间的一般关系和基于面向对象的继承关系。框架实现了数据操纵SQL语句和数据维护程序界面的自动生成,并能自适应表结构的变化。实际应用验证了该框架的可行性和高效性。更多还原

【Abstract】 To mitigate the duplicate codes and improve the adaptability of data maintenance program in database applications,a data maintenance framework based on metadata is proposed.The metadata model can describe the relationship of tables and the inheritance of the tables in object-oriented paradigm.Implementation of the framework including data manipulation SQL statement retrieval,data maintenance user interface generation and adaptability to the table structure alternation is discussed.Practical applications validate the feasibility of the framework.更多还原