What is data warehouse architecture?

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Data warehousing is the repository of integrated information data will be extracted from the heterogeneous sources. Data warehousing architecture contains the different; sources like oracle, flat files and ERP then after it have the staging area and Data warehousing, after that it has the different Data marts then it have the reports and it also have the ODS - Operation Data Store. This complete architecture is called the Data warehousing Architecture.
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