LeetCode 607: Sales Person Solution

Master LeetCode problem 607 (Sales Person), a easy challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.

607. Sales Person

Easy

Database

Problem Explanation

Explanation:

To solve this problem, we need to find the names of all salespersons who did not have any orders related to the company with the name "RED". We can achieve this by using a SQL query that performs a left join between the SalesPerson table and the Orders table, filtering out the salespersons who have orders related to the company "RED".

Solution Code

# Write your MySQL query statement below
SELECT name
FROM SalesPerson
LEFT JOIN Orders ON SalesPerson.sales_id = Orders.sales_id
LEFT JOIN Company ON Orders.com_id = Company.com_id
WHERE Company.name != 'RED' OR Company.name IS NULL

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