（ )是一个面向主题的、集成的、相对 稳定的、反映历史变化的数据集合，用于支持管理决策。它是对多个异构数据源 (包括历史数据)的有效集成，集成后按主题重组，且数据存放后一般不再修改。
- A.大数据
- B.数据仓库
- C.云计算
- D.物联网
正确答案及解析
正确答案
解析
数据仓库（Data Warehouse)是一个面向主题的（SubjectOriented)、集成的、相对 稳定的、反映历史变化的数据集合，用于支持管理决策。数据仓库是对多个异构数据源 (包括历史数据)的有效集成，集成后按主题重组，且存放在数据仓库中的数据一般不再修改。
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