INSERT INTO DEPARTMENT
SELECT
    'B300' AS DEPT_CODE,
    '2023-04-01' AS START_DATE,
    NULL AS END_DATE,
    '新設部門' AS DEPT_NAME,
    LAYER,
    UP_DEPT_CODE,
    '1' AS VALID_FLG,
    UPDATE_USER_NAME,
    '2023-04-01 00:00:00' AS USER_UPDATE_DATETIME
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';