SELECT employee_id FROM job_history GROUP BY employee_id HAVING COUNT(*)  >= 2
What are the employee ids for employees who have held two or more jobs?
SELECT employee_id FROM job_history GROUP BY employee_id HAVING COUNT ( * ) > = 2
select employee_id from job_history group by employee_id having count ( * ) > = value
What are the employee ids for employees who have held two or more jobs ?