SELECT problem_log_id ,  problem_id FROM problem_log ORDER BY log_entry_date LIMIT 1
Find the oldest log id and its corresponding problem id.
SELECT problem_log_id , problem_id FROM problem_log ORDER BY log_entry_date LIMIT 1
select problem_log_id , problem_id from problem_log order by log_entry_date limit value
Find the oldest log id and its corresponding problem id .