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Data warehouses are databases that integrate transaction data from disparate sources and make them available for analysis. What is the difference between a relational and a non-relationaldatabase? Relationaldatabases are structured, which means the data is organized in tables.
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MapReduce MapReduce is a component of the Hadoop framework that’s used to access big data stored within the Hadoop File System Metadata A set of data that describes and gives information about other data. MySQL An open-source relational databse management system with a client-server model.
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