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