WITH DBA_WITH_SNAPSHOT AS ( SELECT MIN(SNAP_ID) AS BEGIN_SNAP_ID, MAX(SNAP_ID) AS END_SNAP_ID FROM DBA_HIST_SNAPSHOT WHERE INSTANCE_NUMBER = 1 AND END_INTERVAL_TIME >= TO_DATE('2016/01/18 09:00:00', 'YYYY/MM/DD HH24:MI:SS') AND BEGIN_INTERVAL_TIME <= TO_DATE('2016/01/18 10:00:00', 'YYYY/MM/DD HH24:MI:SS') ) , DBA_WITH_SQLSTAT AS ( SELECT /*+ INLINE PARALLEL(4) */ A.* FROM DBA_HIST_SQLSTAT A , DBA_WITH_SNAPSHOT X WHERE 1 = 1 ...