Data Architect Question:
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Please explain semi Additive Measures?

Answer:

Semi-additive measures are those where only a subset of aggregation function can be applied. Let’s say account balance. A sum() function on balance does not give a useful result but max() or min() balance might be useful. Consider price rate or currency rate. Sum is meaningless on rate; however, average function might be useful.

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Please explain what is dimensional modeling?Explain me what do you understand by dimension and attribute?