本文介绍了数据仓库中的维及其相关概念，并分别对维的对象记录和实例结构的更新方法进行了描述和评价。

This paper introduced the conception of dimension in data warehouse. Then the methods of updating object records and instance structure of dimensions are described and evaluated respectively.

youdao

本文介绍了数据仓库中的维及其相关概念，并分别对维的对象记录和实例结构的更新方法进行了描述和评价。

This paper introduced the conception of dimension in data warehouse. Then the methods of updating object records and instance structure of dimensions are described and evaluated respectively.

youdao