如何根据SQL中未出现的记录来过滤记录？

Question

I have a table Employer with fields EmployerID and EmployeeID. I need to print all the employeers with more than 2 employees ie count(EmployerID) > 2 when grouped by EmployerID . I am so far able to count the occurrence but not able to filter based on given condition.

select EmployerID ,count(EmployerID) from Employer group by EmployerID

Answer 1

SELECT EmployerID,COUNT(EmployeeID)
FROM EMPLOYER
GROUP BY EmployerID
HAVING COUNT(EmployeeID) > 2