insert into DEPARTMENT
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 = '2023-03-31 23:59:59'
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 DEPT_CODE IN('A100','A200')
  and VALID_FLG = '1';