Database Backup Technology
There are three basic types of full database backups: online, offline, and raw device backups.
Online backups are logical backups of a database that can be run while the database is handling transactions.
Offline backups are logical backups of a database that is in a quiescent mode and is unavailable for transactions.
Raw device backups are physical backups of raw disk slices.
Online Database Backups
Using the online backup method is the least intrusive approach and is a popular solution for databases that must be available 24 hours a day. Online database backups can be achieved with software such as Oracle Recovery Manager (RMAN) or, on older versions of Oracle, with the Oracle Enterprise Backup Utility (EBU). These ...
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