[리트코드/SQL] 23. Customer Placing the Largest Number of Orders (586)

 

👉https://leetcode.com/problems/customer-placing-the-largest-number-of-orders/description/?envType=study-plan&id=sql-i

Customer Placing the Largest Number of Orders - LeetCode

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🤔 문제 분석

1) Write an SQL query to find the for the customer who has placed the largest number of orders.

2) The test cases are generated so that exactly one customer will have placed more orders than any other customer.

 

💡 풀이

SELECT customer_number
FROM Orders
GROUP BY customer_number 
ORDER BY COUNT(*) DESC
LIMIT 1