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tell me the datawarehouse defination,and it is maintaing
hystorical data meaning,what is the use
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Answer / abhinaw prakash
Data warehouse is the coordinated,periodic copying of data
from different sources both inside and outside the
enterprise into an environment optimized for analytical and
informational processing.
By Historical data means that historical data will also be
kept along with the most recent data unlike the OLTP system.
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