INSERT INTO DEPARTMENT (DEPT_CODE, START_DATE, END_DATE, DEPT_NAME,LAYER,UP_DEPT_CODE , VALID_FLG, UPDATE_USER_NAME,USER_UPDATE_DATETIME) 
VALUES ('B300', '2023-04-01', NULL, '新設部門',(select LAYER from DEPARTMENT where DEPT_CODE='A100'),
(select UP_DEPT_CODE from DEPARTMENT where DEPT_CODE='A100'),
'1',
(select UPDATE_USER_NAME from DEPARTMENT where DEPT_CODE='A100'),
'2023-04-01 00:00:00');

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 VALID_FLG = '1' AND DEPT_CODE IN ('A100','A200');