Customer Placing the Largest Number of Orders

You can find the customer who has placed the largest number of orders by grouping the data by customer_number, counting the orders for each customer, and then ordering by the count in descending order to get the customer with the most orders. Here’s the query:

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

Explanation:

  • The GROUP BY customer_number groups the rows by the customer number.
  • The ORDER BY COUNT(order_number) DESC orders the grouped data by the count of order numbers for each customer in descending order.
  • The LIMIT 1 returns only the first row, which will be the customer who has placed the largest number of orders.