Backups

Before we begin, we will need to make sure the databases are running in the ARCHIVELOG mode. We are doing this just to be able to make an online backup, and do it at any arbitrary moment of the day. On many sites, there are databases that do not require full recovery, but they cannot be easily taken offline for a backup. Having the database run in ARCHIVELOG mode enables us to make a backup while users are still working in the database. When only a simple backup is enough and no full recovery is required, we might as well ditch the archived log files that are not needed to restore the database. When full recovery is required, we should also backup the archived log files. As said before, all the databases are running in the ARCHIVELOG mode and we need to save all of the archives for a few databases. For all the databases, we need to back up the archives that are generated during the back up. Failing to do so will make the backup completely useless. Because the customer is not paying...