・work表 +--------+----------------+----------------+---------+ | emp_id | start | end | comment | +--------+----------------+----------------+---------+ | 1 | 19700102155151 | 19700103224342 | work1 | | 1 | 19700105053533 | 19700106122724 | work2 | | 1 | 19700107191915 | 19700109021106 | work3 | +--------+----------------+----------------+---------+ ・emp表 mysql> select * from emp; +--------+-------
