Consolidating data using metadata

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Data warehousing involves data cleaning, data integration, and data consolidations.

For example, let's say you have a full backup of Exchange every week for the last seven years.The purpose of both of them is really what makes them different.A data backup is for recovery or restoring lost or corrupted files.Today's data warehouse systems follow update-driven approach rather than the traditional approach discussed earlier.In update-driven approach, the information from multiple heterogeneous sources are integrated in advance and are stored in a warehouse.

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updating software for use with the