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SELECT c.company_code, c.founder,
COUNT(DISTINCT e.lead_manager_code) AS lead_manager_count,
COUNT(DISTINCT e.senior_manager_code) AS senior_manager_count,
COUNT(DISTINCT e.manager_code) AS manager_count,
COUNT(DISTINCT e.employee_code) AS employee_count
FROM Employee e JOIN Company c ON e.company_code = c.company_code
GROUP BY c.company_code, c.founder
ORDER BY CAST(SUBSTRING(c.company_code, 2) AS UNSIGNED) ASC;
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What is wrong with this answer?
SELECT c.company_code, c.founder, COUNT(DISTINCT e.lead_manager_code) AS lead_manager_count, COUNT(DISTINCT e.senior_manager_code) AS senior_manager_count, COUNT(DISTINCT e.manager_code) AS manager_count, COUNT(DISTINCT e.employee_code) AS employee_count FROM Employee e JOIN Company c ON e.company_code = c.company_code GROUP BY c.company_code, c.founder ORDER BY CAST(SUBSTRING(c.company_code, 2) AS UNSIGNED) ASC;