You have the tables shown in the following table (detailed in explanation below): The Impressions table contains approximately 30 million records per month. You need to create an ad analytics system to meet the following requirements:
• Present ad impression counts for the day, campaign, and Site_name. The analytics for the last year are required.
• Minimize the data model size. Which two actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.
Select one answer.
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