Order Titans of the Stars:Rank Customers by Their Largest Single Order Value with Tie-Aware Results
Intermediate
Spot the customers with the most orders and compare their rankings.
Xorthax wants to understand how frequently each customer shops at his trading post. Calculate how many orders each customer has placed, then assign two types of rankings: one that gives tied customers the same position without skipping any numbers, and another that assigns the same position to ties but does skip numbers
Write Your Query
Answer:
with customerlargestorder as
(select customerid,
count(orderid) as ordercount
from orders
group by customerid)
select customerid,
ordercount,
dense_rank() over (
order by ordercount desc) as rank1,
rank() over (
order by ordercount desc) as rank2
from customerlargestorder;
Explanation:
It reflects sales performance analysis where businesses identify customers responsible for the highest-value individual purchases.
You’ll practice ranking aggregated values while ensuring tied results are treated consistently and fairly.
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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