Kiran Dalvi12 Dec, 20230 Comments28 Secs ReadRMAN-20001: Target Database Not Found In Recovery Catalog Problem :While taking backup by connecting to catalog database, Got RMAN-20001 : target database not found error. Solution :This is because, the target database is not registered in the catalog. So we need connect to catalog database and register the same. RMAN> connect target sys/oracle@cat_db connected to target database: TARGET (DBID=30781588877) RMAN> connect catalog rman_usr/rman@cat_db connected to recovery catalog database -- Now fire register command RMAN> register database; database registered in recovery catalog starting full resync of recovery catalog full resync complete Hope it Helps! Oracle DBAShare: ORA-56935: Existing Datapump Jobs Are Using A Different VersionORA-01145: Offline Immediate Disallowed Unless Media Recovery Enabled