-- EAI -> 업무테이블 작업

```SQL
SELECT to_timestamp(DATEANDTIME, 'yyyy.mm.dd hh24:mi:ss.ff') as DATEANDTIME -- KST
     , to_timestamp(TMSTMP, 'yyyy.mm.dd hh24:mi:ss.ff') as TMSTMP -- UTC
     , to_timestamp(FLYNGPLNCRTNDTTM, 'yyyy.mm.dd hh24:mi:ss.ff') as FLYNGPLNCRTNDTTM -- UTC
     , to_timestamp(substr(RECV_TIME, 1, LENGTH(RECV_TIME) -3) || '.' || substr(RECV_TIME, -1) , 'yyyy.mm.dd hh24:mi:ss.ff') as RECV_TIME -- KST
     , to_timestamp(DATEANDTIME, 'yyyy.mm.dd hh24:mi:ss.ff') - to_timestamp(substr(RECV_TIME, 1, LENGTH(RECV_TIME) -3) || '.' || substr(RECV_TIME, -1) , 'yyyy.mm.dd hh24:mi:ss.ff') as datatime_RecvTime
FROM EAI_ELECSTRIPDEPARTS_RCV
where expArrDepDt = '20230320'

```