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HAZEL
[SQL : select 서브쿼리, join ] HackerRank : New Companies
New Companies >> 문제 Amber's conglomerate corporation just acquired some new companies. Each of the companies follows this hierarchy: Given the table schemas below, write a query to print the company_code, founder name, total number of lead managers, total number of senior managers, total number of managers, and total number of employees. Order your output by ascending company_code. Note: The tab..
DATA ANALYSIS/SQL
2021. 2. 26. 19:30