【摘要】 分析了数据集成过程中需要将集中存放的数据进行拆分实际问题,提出了基于字段的纵向拆分、基于记录的横向拆分和基于表的双向拆分等3种数据集成方法,实现了数据集成和资源共享,其思想对于数据集成的过程中需要将各自分布的数据合并起来的实际问题也有很大意义。更多还原

【Abstract】 The factual problem that centralized data should be divided in the course of data integration is analyzed. Such three methods of data integration as the longitudinal division based on field, the lateral division based on record and the two-way division based on table are put forward to realize data integration and resource share. Its thought is of great benefit to the problem that distributed data should be merged in the course of data integration.更多还原