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

New Companies

  • saivemuri
     + 5 comments

    Here's another way where you don't use an where and have just one join with the Employee table as all data that we need are present over there. 

    select  
        C.company_code ,
        C.founder,
        count(distinct lead_manager_Code),
        count(distinct senior_manager_Code),
        count(distinct Manager_Code),
        count(distinct Employee_Code)
        
    from Company C
        join Employee E on E.company_Code = C.company_Code

    group by C.company_code , C.founder
    
    order by C.company_code asc