The Largest Order in the Galaxy :Calculate the Highest Order Value Across All Customers Intermediate
Reveal every order that matches the highest total ever placed.
Xorthax wants to identify all customers who placed the largest single order in the galaxy. Write a query to calculate the highest order amount and return every order that matches that amount.
Write Your Query
This reflects identifying record-breaking transactions across an entire customer base, useful in sales reporting and business insights.
You will practice working with overall maximum values and filtering results to match global benchmarks.
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.
Yes. Every problem comes with optional hints you can reveal one at a time, plus a fully worked step-by-step solution. You decide how much help you want while practicing.
All problems on PracticeWindowFunctions.com are completely free and can be solved without creating an account. Right now there are over 80 practice problems, with new ones added regularly.
SQL Cookbook (O’Reilly)
Practical SQL recipes for real-world querying—great complement to hands-on practice.
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