MERGE INTO WARN_BOX_COLLECT a
USING(select ID from (
select ID from WARN_BOX_COLLECT where ID = '02-23-34-BX-55-00-280001'
union all
select NULL ID from dual
) where rownum=1) b
ON(b.ID = a.ID)
WHEN MATCHED THEN
UPDATE
SET a.WARN_TIMES = a.WARN_TIMES + 1, a.WARN_LAST_TIME = SYSDATE
WHEN NOT MATCHED THEN
INSERT
(ID,BOX_MAC,WARN_TYPE,WARN_FIRST_TIME,WARN_LAST_TIME,WARN_TIMES,BOX_WARN_NUM)
VALUES('02-23-34-BX-55-00-280001','02-23-34-BX-55-00-28','000',SYSDATE,SYSDATE,1,1);