Every key structure in the data warehouse contains, either implicitly or explicitly, an element of time.

数据仓库中的关键结构，隐式或显式地包含时间元素。

youdao

Every key structure in the data warehouse contains, either implicitly or explicitly, an element of time.

数据仓库中的关键结构，隐式或显式地包含时间元素。

youdao