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목록advanced select and joins (1)
ror_coding
[LeetCode] 1907. Count Salary Categories
출력해야 하는 항목을 고정시킬 때, union all과 select 을 써서 left/right join 을 해야합니다. Question Write a solution to calculate the number of bank accounts for each salary category. The salary categories are:"Low Salary": All the salaries strictly less than $20000."Average Salary": All the salaries in the inclusive range [$20000, $50000]."High Salary": All the salaries strictly greater than $50000.The result table ..
Coding Test/SQL
2025. 7. 19. 14:29