Hi,
Unfortunately Azure Backup does not support backing up Oracle databases directly.
Support matrix for Azure Backup
https://learn.microsoft.com/en-us/azure/backup/backup-support-matrix
You may however make use of the Application-consistent backup of Azure Linux VMs:
https://learn.microsoft.com/en-us/azure/backup/backup-azure-linux-app-consistent
For backing up Oracle databases, please refer to the below documentation:
Back up and recover an Oracle Database 12c database on an Azure Linux virtual machine
https://learn.microsoft.com/en-us/azure/virtual-machines/workloads/oracle/oracle-backup-recovery
Best regards,
Leon