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',A_DEP.LAYER,A_DEP.UP_DEPT_CODE,'1',A_DEP.UPDATE_USER_NAME,'2023-04-01 00:00:00'
from DEPARTMENT A_DEP 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';