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select company.company_code, company.founder, count(distinct lead_manager.lead_manager_code), count(distinct senior_manager.senior_manager_code), count(distinct manager.manager_code), count(distinct employee.employee_code)
from company
join lead_manager on company.company_code=lead_manager.company_code
join senior_manager on company.company_code=senior_manager.company_code
join manager on company.company_code=manager.company_code
join employee on company.company_code=employee.company_code
group by company.company_code, company.founder
order by company.company_code;
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select company.company_code, company.founder, count(distinct lead_manager.lead_manager_code), count(distinct senior_manager.senior_manager_code), count(distinct manager.manager_code), count(distinct employee.employee_code) from company join lead_manager on company.company_code=lead_manager.company_code join senior_manager on company.company_code=senior_manager.company_code join manager on company.company_code=manager.company_code join employee on company.company_code=employee.company_code group by company.company_code, company.founder order by company.company_code;