The NOARCHIVELOG mode
When your database is created by default, it will be created using the NOARCHIVELOG mode. This mode permits any normal database operations but will not provide your database with the capability to perform any point-in-time recovery operations or online backups of your database.
When the database is using this mode, no hot backup is possible (hot backup is any backup done with the database open, causing no interruption for the users). You will only be able to perform backups with your database down (shutdown, also known as the offline backup or the cold backup), and you will only be able to perform a full recovery up to the point that your backup was made. You can see in the following example what will happen if you try to ...
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