A data warehouse is a subject-oriented data set used for reporting and analusis. Data warehouses can be subdivided into ( ). Which store subsets of data from a warehouse.
- A OLTPs
- B transactions
- C data sarts
- D OLAPs
问题
A data warehouse is a subject-oriente
参考解析：
数据仓库是一个面向主题的用于报告和分析的数据集。数据仓库可以细分为数据集市，即从一个仓库中存储数据的子集。A：联机事务处理B：交易C：数据集市D：联机分析处理
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