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');

-- SELECT * FROM DEPARTMENT;

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';

-- SELECT * FROM EMP;