Ora-19602:cannot Backup or copy active file in Noarchivelog mode

Back up the database with the following error

Rman>backup Database; Starting backup at on-jan- -Allocated Channel:ora_disk_1channel Ora_disk_1:sid= +Device type=diskchannel ora_disk_1:starting full datafile backup Setchannel ora_disk_1:specifying datafile (s)inchBackup Setrman-03009: Failure of backup command on Ora_disk_1 channel at on/ on/ .  the: -: theORA-19602: cannot backup or copy activefile inchNoarchivelog modecontinuing Other job steps, Job failed won't be re-runchannel ora_disk_1:starting full datafile backup Setchannel ora_disk_1:specifying datafile (s)inchbackup setincluding Current controlfile inchbackup setincluding Current SPFILEinchbackup Setchannel ora_disk_1:starting piece1At on-jan- -Channel ora_disk_1:finished piece1At on-jan- -piece handle=/USR/ORACLE/APP/FLASH_RECOVERY_AREA/ORCL/BACKUPSET/2016_01_01/O1_MF_NCSNF_TAG20160101T092049_C8CO3LGB_.BKP tag =tag20160101t092049 comment=Nonechannel ora_disk_1:backup set complete, elapsed Time:xx:xx: onRMAN-00571: ===========================================================RMAN-00569: =============== ERROR MESSAGE, STACK follows ===============RMAN-00571: ===========================================================RMAN-03009: Failure of backup command on Ora_disk_1 channel at on/ on/ .  the: -: theORA-19602: cannot backup or copy activefile inchNoarchivelog mode

Workaround:

Method 1, Mount State backup

Method 2, Backup in archive mode

Ora-19602:cannot Backup or copy active file in Noarchivelog mode