INSERT INTO DEPARTMENT
SELECT
	'B300'
	,'2023-04-01'
	,NULL
	,'新設部門'
	,t1.LAYER
	,t1.UP_DEPT_CODE
	,'1'
	,t1.UPDATE_USER_NAME
	,'2023-04-01 00:00:00'
FROM DEPARTMENT AS t1
WHERE t1.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 DEPARTMENT 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');