RMAN STATUS

SELECT OPERATION, STATUS, MBYTES_PROCESSED, START_TIME, END_TIME from V$RMAN_STATUS;

Check RMAN backup status complete

set pagesize 200
set linesize 200

select SESSION_KEY, INPUT_TYPE, STATUS,
to_char(START_TIME,'mm-dd-yyyy hh24:mi:ss') as RMAN_Bkup_start_time,
to_char(END_TIME,'mm-dd-yyyy hh24:mi:ss') as RMAN_Bkup_end_time,
elapsed_seconds/3600 Hours from V$RMAN_BACKUP_JOB_DETAILS