3) Explain about the non-volatile feature of data ware house?
Data once written and saved in data ware house is static and it can never be deleted and over written once confirmed. It will be static and read-only. This can be used for future reporting and it allows good security feature.
Data once written and saved in data ware house is static and it can never be deleted and over written once confirmed. It will be static and read-only. This can be used for future reporting and it allows good security feature.
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