#110. [LeetCode / MySQL] 1907. Count Salary Categories

문제 입력 코드 (SELECT "Low Salary" AS category, (SELECT COUNT(account_id) FROM Accounts WHERE income = 20000 and income 50000) AS accounts_count) 코드 설명 #SELECT #COUNT #UNION #UNION ALL 문제 출처 LeetCode - The World's Leading Online Programming Learning Platform Level up your ..

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• · 2023. 10. 6.
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#109. [LeetCode / MySQL] 1204. Last Person to Fit in the Bus

문제 입력 코드 SELECT q1.person_name FROM Queue AS q1 JOIN Queue AS q2 ON q1.turn >= q2.turn GROUP BY q1.turn HAVING SUM(q2.weight)

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• · 2023. 10. 5.
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#108. [LeetCode / MySQL] 1164. Product Price at a Given Date

문제 입력 코드 SELECT DISTINCT product_id, 10 AS price FROM Products WHERE product_id NOT IN (SELECT DISTINCT product_id FROM Products WHERE change_date

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• · 2023. 10. 4.
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#106. [LeetCode / MySQL] 610. Triangle Judgement

문제 입력 코드 1. SELECT x, y, z, (CASE WHEN x+y Y, "Yes", "No") AS Triangle FROM Triangle 코드 설명 #SELECT #CASE WHEN #ELSE #IF 문제 출처 LeetCode - The World's Leading Online Programming Learning Platform 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 interview. leetcode.com

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• · 2023. 10. 2.
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#105. [LeetCode / MySQL] 1789. Primary Department for Each Employee

문제 입력 코드 1. SELECT employee_id, department_id FROM Employee GROUP BY employee_id HAVING COUNT(employee_id) = 1 UNION SELECT employee_id, department_id FROM Employee WHERE primary_flag = 'Y' 2. SELECT DISTINCT employee_id, department_id FROM Employee WHERE employee_id IN ( SELECT employee_id FROM Employee GROUP BY employee_id HAVING COUNT(*) = 1 ) OR primary_flag = 'Y' ORDER BY employee_id; 코드 설명..

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• · 2023. 10. 1.
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#104. [LeetCode / MySQL] 1731. The Number of Employees Which Report to Each Employee

문제 입력 코드 SELECT e2.employee_id, e2.name, COUNT(*) AS reports_count, ROUND(AVG(e1.age)) AS average_age FROM Employees AS e1 INNER JOIN Employees AS e2 ON e1.reports_to = e2.employee_id GROUP BY e2.employee_id, e2.name ORDER BY e2.employee_id 코드 설명 #SELECT #COUNT #ROUND #AVG #INNER JOIN #GROUP BY #ORDER BY 문제 출처 LeetCode - The World's Leading Online Programming Learning Platform Level up your codi..

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• · 2023. 9. 30.
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