As Data Warehouse store huge amount of data with the span of more than decades, the security of this huge information base is crucial for the sustainability and reliability of data warehouse. Since its advent the data warehouse has gone through various technological changes, which has prompted changes in the security strategies as well. This article, is taking a deep look at the various changes in the security mechanisms of the Data Warehouse, along with the changes in the strategies for the data warehouse development. It helps in understanding the various security aspects related to Data Warehouse, in coherence with the different methodologies employed for its development and functioning.
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