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Oracle: backup

Logical and physical backups

Logical	Physical
Tables, stored procedures etc.	Copies of database files
Extracted with Data Pump	RMAN or operating system utilities
Slower but finer granularity	Fast but larger granularity
Complete transportability	Limited transportability

Databases whose backups are managed by Recovery Appliance are called protected databases.

The size of backups is reduced with binary compression (see RMAN)