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