Advanced Analytics -Technology and Tools – Advanced SQL and MADlib”

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After reading Chapter 11a and Chapter 11b Lecture (see the attachments), “Advanced Analytics -Technology and Tools – Advanced SQL and MADlib”• Describe how the following code will work:SELECT dt, region, revenue,count(*) OVER (twdw) AS moving_count,avg(revenue) OVER (twdw) AS moving_averageFROM moving_average_data madWINDOW twdw AS (PARTITION BY regionORDER BY dt RANGE BETWEEN’7 days’::interval PRECEDING AND’0 days’::interval FOLLOWING)ORDER BY region, dt

 
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