Aggregate transformation
Describe briefly Aggregate transformation?
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Aggregator transformation provides to perform collective computations, such as sums and averages.
What is meant by the snow flake schema?
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Another company used statistic in reports is the total number of orders placed by a shopper. Complete the following steps to create a function named NUM_PURCH_SF that accepts a shopper id and returns the total number of orders the shopper has placed. Use the function in a SELECT statement to display
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