【摘要】 数据迁移可以看作是实现从源数据库表到目的数据库表的映射。研究了数据迁移的形式化过程,详细讨论了该过程中存在的几类重要映射,提出了基于XML的通用映射规则表示方法。在此基础上,介绍了通过分析数据库表对象创建脚本自动生成XML形式映射规则框架的方法,并讨论了实际的数据迁移过程。更多还原

【Abstract】 Data migration is a mapping between source database and target database. The formal process of data migration was addressed and several principal mappings among the process were analyzed. An XML-based mapping rule representation method was fully discussed. Furthermore, an approach which can be used to retrieve XML mapping rule skeleton by parsing table object creation DDL script was intorduced. Finally, the method was applied in practice.更多还原