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select c.company_code, c.founder, count(distinct l.lead_manager_code), count(distinct s.senior_manager_code), count(distinct m.manager_code), count(distinct e.employee_code) from Company c
join Lead_Manager l on l.company_code = c.company_code
join Senior_Manager s on s.company_code = c.company_code
join Manager m on m.company_code = c.company_code
join Employee e on e.company_code = c.company_code
group by c.company_code, c.founder
order by c.company_code
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select c.company_code, c.founder, count(distinct l.lead_manager_code), count(distinct s.senior_manager_code), count(distinct m.manager_code), count(distinct e.employee_code) from Company c
join Lead_Manager l on l.company_code = c.company_code join Senior_Manager s on s.company_code = c.company_code join Manager m on m.company_code = c.company_code join Employee e on e.company_code = c.company_code
group by c.company_code, c.founder order by c.company_code