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📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ✔문제 https://leetcode.com/problems/customers-who-bought-all-products/ Customers Who Bought All Products - LeetCode Can you solve this real interview question? Customers Who Bought All Products - Table: Customer +-------------+---------+ | Column Name | Type | +-------------+---------+ | customer_id | int | | ..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ✔ 문제 https://leetcode.com/problems/tree-node/ Tree Node - LeetCode Can you solve this real interview question? Tree Node - Table: Tree +-------------+------+ | Column Name | Type | +-------------+------+ | id | int | | p_id | int | +-------------+------+ id is the primary key column for this table. Each row ..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ✔ 문제 https://leetcode.com/problems/friend-requests-ii-who-has-the-most-friends/description/ Friend Requests II: Who Has the Most Friends - LeetCode Can you solve this real interview question? Friend Requests II: Who Has the Most Friends - Table: RequestAccepted +----------------+---------+ | Column Name | Ty..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ■ 문제 https://leetcode.com/problems/human-traffic-of-stadium/description/ Human Traffic of Stadium - LeetCode Can you solve this real interview question? Human Traffic of Stadium - Table: Stadium +---------------+---------+ | Column Name | Type | +---------------+---------+ | id | int | | visit_date | date | ..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ■ 문제 https://leetcode.com/problems/employee-bonus/ Employee Bonus - LeetCode Can you solve this real interview question? Employee Bonus - Table: Employee +-------------+---------+ | Column Name | Type | +-------------+---------+ | empId | int | | name | varchar | | supervisor | int | | salary | int | +------..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ■ 문제 https://leetcode.com/problems/investments-in-2016/description/ Investments in 2016 - LeetCode Can you solve this real interview question? Investments in 2016 - Table: Insurance +-------------+-------+ | Column Name | Type | +-------------+-------+ | pid | int | | tiv_2015 | float | | tiv_2016 | float | ..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ■ 문제 https://leetcode.com/problems/managers-with-at-least-5-direct-reports/description/ Managers with at Least 5 Direct Reports - LeetCode Can you solve this real interview question? Managers with at Least 5 Direct Reports - Level up your coding skills and quickly land a job. This is the best place to expand..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ■ 문제 https://leetcode.com/problems/game-play-analysis-iv/description/ Game Play Analysis IV - LeetCode Can you solve this real interview question? Game Play Analysis IV - Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next intervi..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 리트코드 Problems, https://leetcode.com/problemset/all/임을 밝힙니다. ■ 문제 https://leetcode.com/problems/sales-person/description/ Sales Person - LeetCode Can you solve this real interview question? Sales Person - Table: SalesPerson +-----------------+---------+ | Column Name | Type | +-----------------+---------+ | sales_id | int | | name | varchar | | salary | int | | commis..

📢 본 포스팅에 활용되는 기본 문제 및 자료 출처는 프로그래머스 코딩테스트 연습, https://school.programmers.co.kr/learn/challenges?page=1&languages=mysql%2Coracle임을 밝힙니다. · 본 문제 https://school.programmers.co.kr/learn/courses/30/lessons/164668 ■ 문제 문제 설명 다음은 중고 거래 게시판 정보를 담은 USED_GOODS_BOARD 테이블과 중고 거래 게시판 첨부파일 정보(자체수정) 작성자 정보를 담은 USED_GOODS_FILE 테이블입니다. USED_GOODS_BOARD 테이블은 다음과 같으며 BOARD_ID, WRITER_ID, TITLE, CONTENTS, PRICE, CR..