A data warehouse is a subject-oriented data set used for reporting and analusis. Data ware

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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 请帮忙给出正确答案和分析,谢谢!
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