insert into DEPARTMENT
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'
and END_DATE is null
;

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')
and END_DATE is null
;
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'
;