The key to the quick responsiveness of OLAP processing is the pre-aggregation of detailed data into useful summaries of data in anticipation of questions that might be raised.
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Q2: Data repository creation begins with an ETL
Q3: Data marts must be designed from scratch
Q4: Some organizations have multiple data marts,each designed
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Q6: Data cubes are restricted to three dimensions.
Q7: If the data within a data cube
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