insert into department (dept_code, start_date, end_date, dept_name, layer, up_dept_code, valid_flg, update_user_name, user_update_datetime)
select 'B300', '2023-04-01', null, '新設部門', layer, up_dept_code, '1', update_user_name, '2023-04-01 00:00:00' from department where dept_code = 'A100';
update department set end_date = '2023-03-31', valid_flg = '0', update_user_name = 'ORG_CHG', user_update_datetime = '2023-04-01 00:00:00'
where dept_code in ('A100', 'A200');
update emp set dept_code = 'B300', start_date = '2023-04-01', update_user_name = 'ORG_CHG', user_update_datetime = '2023-04-01 00:00:00'
where valid_flg = '1' and dept_code in ('A100', 'A200');