ORA-10873: file 1 needs to be either taken out of backup mode or media recovered

 ORA-10873: file 1 needs to be either taken out of backup mode or media recovered

shut immediate;

startup mount;

select * from v$backup;

alter database end backup;

alter database open.

COL DF# FORMAT 999
COL DF_NAME FORMAT A35
COL TBSP_NAME FORMAT A7
COL STATUS FORMAT A7
COL ERROR FORMAT A10
COL CHANGE# FORMAT 99999999
SELECT r.FILE# AS df#, d.NAME AS df_name, t.NAME AS tbsp_name, 
       d.STATUS, r.ERROR, r.CHANGE#, r.TIME
FROM V$RECOVER_FILE r, V$DATAFILE d, V$TABLESPACE t
WHERE t.TS# = d.TS#
AND d.FILE# = r.FILE#
;