--部門テーブル(DEPARTMENT)
--部門コード(DEPT_CODE)='A100' と'A200'が'B300'に統合
--新設された部門('B300')を'A100'のデータを利用して作成
--★挿入
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',2,'1000','1','SYSTEM','2023-04-01 00:00:00');

--★更新
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 = 'A100'
OR DEPT_CODE = 'A200';

--★更新
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 VALID_FLG = '1'
AND (DEPT_CODE = 'A100' OR DEPT_CODE = 'A200');

--SELECT *
--FROM DEPARTMENT;
SELECT *
FROM EMP
ORDER BY EMP_CODE ASC;