Configuring and Backing Up Oracle Databases Using RMAN - OCP: Oracle Database 12c Administrator Certified Professional - page 136

Backing Up Your Database with RMAN

We will discuss backups of your database using RMAN in the following sections. We will
first talk about the different types of backups that you can make with RMAN. Then we
will discuss what you can back up using RMAN, such as the database, archived redo logs,
and so forth.

Using the RMAN Command Line

Like SQL and SQL*Plus, RMAN has its own unique command set. You use these commands
to do a number of things:
■ Configure RMAN
■ Back up database structures (tablespaces, data files, control files, and so on)
■ Restore and recover your database
■ Produce various reports and lists that contain backup-related information
■ Create duplicate databases
■ Restore specific tablespaces
This is just a partial list of all the things RMAN can do for you. Table 3.3 describes the
RMAN commands you will need to know for the OCP exam.

TABle 3.3 RMAN Commands

RMAN Command Description

@ Run a command file.

@@ Run a command file in the same directory as another command file

that is currently running. The @@ command differs from the @ com-
mand only when run from within a command file.

ALLOCATE CHANNEL Establish a channel, which is a connection between RMAN and a

database instance.

ALLOCATE CHANNEL
FOR MAINTENANCE

Allocate a channel in preparation for issuing maintenance com-
mands such as DELETE .

allocOperandList A subclause that specifies channel control options such as PARMS

and FORMAT .

ALTER DATABASE Mount or open a database.