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