Recovery catalog backup & recovery

HI,

I read in Oracle documentation about how to do Recovery catalog backup & recovery,but i couldn't understand,can anyone explain to me with more practical example.

In my RMAN setup,
the target database is NEWDB
the recovery catalog database is TESTDB1 (DEFAULT TABLESPACE FOR THE RMAN user is TOOLS,whose datafile is "TOOLS01.DBF".

What does the Recovery catalog database mean?Is it backup of the corresponding datafile,in this case TOOLS01.DBF?

Please anyone explain me with an example.

Thanks in advance,
Malru

seriously, read the backup and recovery guide for rman, its a subject you just cannot get wrong

The catalog is like the book keeper, it keeps details of all the backups you take.

Nothing to do with the rubbish you said there