MIS数据迁移中的映射规则  

Mapping Rules of Data Migration in MIS

作　　者：徐茜[1] 吕良双[1] 

机构地区：[1]北京航空航天大学计算机学院,北京100083

出　　处：《计算机与现代化》2007年第8期69-71,共3页Computer and Modernization

摘　　要：在MIS更替中,数据迁移必不可少,通常包括数据抽取、数据转换和数据加载。源系统和目的系统可以看作两个逻辑模型,以此为前提,本文主要讨论了数据迁移过程中应该保证数据完整性约束,在此原则之上提出了映射规则,并在此基础上进一步讨论了映射规则中实体间、表格间以及字段间的对应关系,及其规则中存在的运算法则。In the subrogation of MIS, data migration including data extracting, data transformation and data loading is necessary. Under the precondition that the source system and the target system are supposed as two logical models, the following issues are mainly discussed： Mapping rules are proposed based on the principle that data integrity shoald be guaranteed in the process of data migration, and on further the corresponding relations among the entities, tables and the fields are discussed, and the algorithms existed in mapping rules are also discussed.

关 键 词：数据迁移 数据完整性约束 映射规则 

分 类 号：TP311.132[自动化与计算机技术—计算机软件与理论]