INSERT INTO DEPARTMENT
    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')
    ;
    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 DEPARTMENT WHERE DEPT_CODE IN ('A100', 'A200', 'B300')
    ;
    SELECT * FROM EMP WHERE DEPT_CODE IN ('A100', 'A200', 'B300')
    ;