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Window Functions

When window functions are evaluated
Window functions and GROUP BY
Summary

Instruction

Fine. Let's do one more exercise of this kind.

Exercise

Group the auctions based on the day they ended and show the following columns: ended, the average number of views from auctions on that day and the ranking based on that average (the highest average should get the rank of 1).

Stuck? Here's a hint!

Use 

RANK() OVER(ORDER BY AVG(views) DESC)
as your window function.