문제링크 https://leetcode.com/problems/replace-employee-id-with-the-unique-identifier/description/?envType=study-plan-v2&envId=top-sql-50 Replace Employee ID With The Unique Identifier - LeetCode Can you solve this real interview question? Replace Employee ID With The Unique Identifier - Table: Employees +---------------+---------+ | Column Name | Type | +---------------+---------+ | id | int | | na..

문제링크 https://leetcode.com/problems/invalid-tweets/description/ Invalid Tweets - LeetCode Can you solve this real interview question? Invalid Tweets - Table: Tweets +----------------+---------+ | Column Name | Type | +----------------+---------+ | tweet_id | int | | content | varchar | +----------------+---------+ tweet_id is the primary key (c leetcode.com 문제 소스코드 # Write your MySQL query statem..

문제 링크 https://leetcode.com/problems/find-customer-referee/description/ Find Customer Referee - LeetCode Can you solve this real interview question? Find Customer Referee - Table: Customer +-------------+---------+ | Column Name | Type | +-------------+---------+ | id | int | | name | varchar | | referee_id | int | +-------------+---------+ In SQL, id is the leetcode.com 문제 소스코드 # Write your MySQ..

문제 링크 https://leetcode.com/problems/recyclable-and-low-fat-products/description/ Recyclable and Low Fat Products - LeetCode Can you solve this real interview question? Recyclable and Low Fat Products - Table: Products +-------------+---------+ | Column Name | Type | +-------------+---------+ | product_id | int | | low_fats | enum | | recyclable | enum | +-------------+--------- leetcode.com 문제 소..