I have created recovery catalog I need some help on how to proceed from here onwards because I'm getting a bit confused about an earlier explanation

This is how I created the catalog:


$ export ORACLE_SID=DATA1
$ rman catalog rman/rman

RMAN> create catalog;

RMAN-06431: recovery catalog created

RMAN> exit

Recovery Manager complete.

NOW I HAVE TO REGISTER THE TARGET DATABASE WITH THE CATALOG TO GET THE TARGET DATABASE CONTROL FILE INFORMATION WITHOUT USING THE PASSWORD FILE

NOTE:
I created the recovery catalog in database called DATA1.
My other database is DATA2
O/S is AIX

Thanks,
RAJ