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

New Companies

  • moradmahjour
     + 1 comment

    Ms sql , No need to use all tables 

    select company.company_code , founder, 
count(distinct lead_manager_code) ,
count(distinct senior_manager_code),
count(distinct manager_code),

count(distinct employee_code)

 from company 
left join employee on employee.company_code = company.company_code
group by company.company_code ,founder