SELECT A.LOGTIME
,A.SID
,A.SERIAL#
,A.USERNAME
,A.OSUSER
,A.SQL_TEXT
,A.SQL_ID
,NVL(A.ELAPSED_TIME,0)-NVL(B.ELAPSED_TIME,0)
,A.MACHINE
,A.PROGRAM
,A.MODULE
,A.ACTION
,A.LOGON_TIME
,A.EVENT
,A.STATUS
,NVL(A.LOGI_READS,0)-NVL(B.LOGI_READS,0)
,NVL(A.PHYS_READS,0)-NVL(B.PHYS_READS,0)
,NVL(A.EXEC_CNT,0)-NVL(B.EXEC_CNT,0)
,A.WAIT_TIME
FROM MON.SJ_LST_PERF_ACLATE a LEFT OUTER JOIN MON.SJ_LST_PERF_ACLATE b
ON b.sql_id = a.sql_id
AND b.logtime = TO_CHAR(SYSDATE-2/24/60,'YYYYMMDDHH24MI')
WHERE a.logtime = TO_CHAR(SYSDATE-1/24/60,'YYYYMMDDHH24MI')
ORDER BY 1,2,3;
이쿼리를 아우터 조인으로 바꾸면 어떤 형태가 될까요 ㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠ