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  1. Prepare
  2. SQL
  3. Advanced Select
  4. New Companies
  5. Discussions

New Companies

  • ahmedian365
     + 2 comments
    SELECT DISTINCT 
    e.company_code, 
    Founder, COUNT(DISTINCT e.lead_manager_code), 
    COUNT(DISTINCT e.senior_manager_code), 
    COUNT(DISTINCT e.manager_code), 
    COUNT(DISTINCT e.employee_code) FROM Company c
JOIN Employee e ON e.company_code = c.company_code
GROUP BY e.company_code, Founder;

    We dont need to join all the tables. Since all the data is present on employees table. we only need to join the company table