What is the difference between various types of data warehousing?

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Enterprise Data WAREHOUSE	Operational Data Store	Data Mart
It GIVES the controlled DATABASE for decision support throughout the enterprise.	Under its scope, it has a broad enterprise which is unlikely a REAL enterprise Data warehouse. In this, data gets refreshed in rare real-time and it is being used for daily business activity.	It is a sub-part of the data warehouse. It is designed for particular lines of business, hence support for a particular reason.

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