Supplier Price Curves:Analyze Supplier Pricing Distribution to Compare Average Product Costs Across the Market
Intermediate
Calculate the cumulative distribution of average product prices per supplier.
Xorthax wants to evaluate suppliers based on the cumulative distribution of their average product price. Write a query to calculate this distribution for each supplier.
Write Your Query
Answer:
select s.supplierid,
s.name as suppliername,
avg(p.price) as averageprice,
cume_dist() over (
order by avg(p.price) desc) as pricingdistribution
from suppliers s
join products p on s.supplierid = p.supplierid
group by s.supplierid,
s.name;
Explanation:
This mirrors evaluating supplier pricing performance to see how each compares across an industry or marketplace.
You'll practice calculating cumulative distributions and analyzing how aggregated values rank within a complete dataset.
This problem is labeled as Intermediate. It assumes you’ve written a few window function queries before, but you don’t need to be an expert. Use the hints and explanations if you get stuck — they’re there to help you think through the logic.
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