Migration of CATALOG DB to other Oracle Database

HI Experts,
i need your guidence. we have a catalog DB and we have created to schemas with RECOVERY_CATALOG_OWNER Role. now we want to migrate this catalog DB to other database of same version that is 10gr2 (10.2.0.4). below are the steps that i ll do
will take logical backup of both schema by expdp and then import the shema backup to target DB where we want to migrate.
now my question is this after importing schema to destination DB should i need to register the Databases that are already registered in this catalog DB on source ?
regards,

AMIABU wrote:
ok thanx. its mean we have two ways now to migrate this
1-by first unregistering the Database and then take logical backup import to other DB and ten register them again
2- second is the only import it to other DB and edit TNSNAMES.ORA files and start taking backup
regards,Do not need unregister and register.Actually this catalog contain sufficient information(backup) pf your target database.
So take backup of catalog database and restore it in new place/server(recommended way using RMAN) and that is all.

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Migration of CATALOG DB to other Oracle Database

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