RMAN-20002: target database already registered in recovery catalog

Hi,

Sometimes You can get “RMAN-20002: target database already registered in recovery catalog ” error.

 

Details of error are as follows.

RMAN-20002: target database already registered in recovery catalog
Cause: target database is already registered in the recovery catalog
Action: if the target database is really registered, there is no need to register it again.
Note that the recovery catalog enforces that all databases have a unique DBID.
If the new database was created by copying files from an existing database,
it will have the same DBID as the original database and cannot be registered in the same recovery catalog.

RMAN> register database;

starting full resync of recovery catalog
full resync complete
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of register command on default channel at 29/04/2020 14:40:48
RMAN-20002: target database already registered in recovery catalog

This error is related with the catalog database, to solve this error, reset database as follows.

 

RMAN> reset database;

database incarnation already registered

Do you want to learn more details about RMAN, then read the following articles.

https://ittutorial.org/rman-backup-restore-and-recovery-tutorials-for-beginners-in-the-oracle-database/

 

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About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience. I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource. I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks. I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients. If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress mehmetsalih.deveci@outlook.com. -                                                                                                                                                                                                                                                 - Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  mehmetsalih.deveci@outlook.com a mail atabilirsiniz.

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