query: SELECT job_id FROM job_history WHERE end_date - start_date  > 300 GROUP BY job_id HAVING COUNT(*) >= 2
question: What-what a job id for job a-done and once for a period of more than 300 day?
query_toks: SELECT job_id FROM job_history WHERE end_date - start_date > 300 GROUP BY job_id HAVING COUNT ( * ) > = 2
query_toks_no_value: select job_id from job_history where end_date - start_date > value group by job_id having count ( * ) > = value
question_toks: What-what a job id for job a-done and once for a period of more than 300 day?