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Introduction
Total revenue for multiple periods
Calculating deltas
Creating "revenue in quarters" reports
Summary
19. Question 2

Instruction

Very good! Let's try the second question.

Exercise

For each month of the first half of 2017, calculate the total revenue and the revenue change (delta) as compared to the previous month. Show three columns: RevenueMonth, TotalRevenue, and Delta.

In the first row, leave the delta value as NULL. Order the results by month.