# Customer Placing the Largest Number of Orders LeetCode Solution

This Leetcode problem Customer Placing the Largest Number of Orders LeetCode Solution is done in SQL.

# List of all LeetCode Solution

## Problem Statement

order_number is the primary key (column with unique values) for this table. This table contains information about the order ID and the customer ID.

Write a solution to find the `customer_number` for the customer who has placed the largest number of orders.

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

The result format is in the following example.

Example 1:
Input:

Output:

Explanation: The customer with number 3 has two orders, which is greater than either customer 1 or 2 because each of them only has one order. So the result is customer_number 3.

## Customer Placing the Largest Number of Orders LeetCode Solution MySQL

``````select
customer_number
from
(
select
customer_number,
count(*) as cnt
from
orders
group by
customer_number
) as e
order by
e.cnt desc
limit
1;```Code language: SQL (Structured Query Language) (sql)```
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