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Amazon 인터뷰 문제 Find the details of each customer regardless of whether the customer made an order. Output the customer's first name, last name, and the city along with the order details. You may have duplicate rows in your results due to a customer ordering several of the same items. Sort records based on the customer's first name and the order details in ascending order. 고객의 주문 여부에 관계없이 각 고객의 세부..

StrataScratch Drop Box 인터뷰 문제 Write a query that calculates the difference between the highest salaries found in the marketing and engineering departments. Output just the absolute difference in salaries. 마케팅 부서와 엔지니어링 부서에서 가장 높은 연봉의 차이를 계산하는 쿼리를 작성합니다. SELECT MAX(CASE WHEN b.department = 'marketing' THEN salary END) - MAX(CASE WHEN b.department = 'engineering' THEN salary END) AS max_salary_dif..