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 = '2023-03-31 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');