Why do we need a recovery catalog for RMAN?
A separate database schema used to record RMAN activity against one or more target databases. A recovery catalog preserves RMAN repository metadata if the control file is lost, making it much easier to restore and recover following the loss of the control file.
What happens to RMAN when a control file is lost?
A recovery catalog preserves RMAN repository metadata if the control file is lost, making it much easier to restore and recover following the loss of the control file. The database may overwrite older records in the control file, but RMAN maintains records forever in the catalog unless the records are deleted by the user.
How to start a RMAN client on command prompt?
The RMAN client is started by issuing the rman command at the command prompt of your operating system. RMAN then displays a prompt for your commands as shown in the following example: % rman RMAN>. RMAN connections to a database are specified and authenticated in the same way as SQL*Plus connections to a database.
What do you need to know about RMAN in Oracle?
This chapter contains the following topics: Recovery Manager (RMAN) is an Oracle Database client that performs backup and recovery tasks on your databases and automates administration of your backup strategies. It greatly simplifies backing up, restoring, and recovering database files.
How to show the configuration of a database in RMAN?
To show the current configuration for a database: Start RMAN and connect to a target database. Run the SHOW ALL command. For example, enter the command at the RMAN prompt as follows:
When do I need to enter a password in RMAN?
You should enter passwords in RMAN only when requested by an RMAN prompt. See Oracle Database Security Guide to learn about password protection. You can connect to a database with command-line options or by using the CONNECT TARGET command.