Data warehousing without archiving is like a garage attached to a residence that a family has lived in for several generations. It becomes the container for a lot of “valuable” stuff, but soon there is no room for the family car. If that stuff were just pure junk, the family could simply throw it out. Yet everyone knows that as soon as anything has been thrown out, there will be a request for it so we keep it just in case. The same can be said for data warehouses.

 

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