When doing a incomplete recovery (i.e. database is open with resetlogs) and when running RMAN to backup that database after incomplete recovery you will get the following error.

RMAN-03014: implicit resync of recovery catalog failed
RMAN-06004: ORACLE error from recovery catalog database: RMAN-20011: target database incarnation is not current in recovery catalog

To fix this issue by performing the following steps.

1) Connect to RMAN catalog via SQL*Plus
$ sqlplus @rmancatalog

SQL> SELECT name, DBID, RESETLOGS_TIME FROM rc_database WHERE dbid=9999999999;

NAME DBID RESETLOGS
——– ———- ———
TESTDB 9999999999 29-JUL-09

Check the latest incarnation
SQL> SELECT dbid, name, dbinc_key, resetlogs_change#, resetlogs_time FROM rc_database_incarnation WHERE dbid=9999999999 ORDER BY resetlogs_time;

SQL>SELECT db_key,DBID,name,current_incarnation FROM rc_database_incarnation WHERE dbid = 9999999999 order by 1;

DBID NAME DBINC_KEY RESETLOGS_CHANGE# TO_CHAR(RESETLOGS_TI
———- ——– ———- —————– ——————–
9999999999 TESTDB 473490 1 16-FEB-2006 08:59:37
9999999999 TESTDB 473484 565658 07-MAY-2007 10:15:58
9999999999 TESTDB 774712 52500357 29-JUL-2009 11:12:21

So then connect to the rman catalog
$ export NLS_DATE_FORMAT=’DD-MON-YYYY HH24:MI:SS’
$ rman catalog target /
RMAN> reset database to incarnation 774712; — From step 1 after running this step you should be able to run backup on the database on which incomplete recovery was done

RMAN> resync catalog;

— shows the current incarnation is the current one
RMAN> list incarnation;

List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
——- ——- ——– —————- — ———- ———-
473483 473490 TESTDB 9999999999 PARENT 1 16-FEB-2006 08:59:37
473483 473484 TESTDB 9999999999 PARENT 565658 07-MAY-2007 10:15:58
473483 774712 TESTDB 9999999999 CURRENT 52500357 29-JUL-2009 11:12:21