Sql Query Interview Question | Leetcode-584 | Learn SQL | Day-2
Welcome to another LeetCode SQL query explanation video! In this tutorial, we'll walk through problem number 584 - "Find Customer Referee".
Problem Statement:
Given a table customer with three columns: customer_id, name, and referee_id, where customer_id is the primary key, name is the name of the customer, and referee_id is the id of the customer's referee (another customer's customer_id). The referee_id is NULL for customers who don't have a referee. Write a SQL query to return the list of customers who don't have any referees.
In this video, we'll discuss the problem statement, understand the requirements, and go through a step-by-step SQL solution to efficiently retrieve the desired information.
Stay tuned and let's dive into solving LeetCode SQL Query 584 together! Don't forget to like, comment, and subscribe for more LeetCode SQL query explanations and programming tutorials!