RMAN> create catalog tablespace rman_ts;
error occurred in source file: krmk.pc, line: 6824
text of failing SQL statement: ¬ J
ORACLE error from recovery catalog database: ORA-00955: name is already used by an existing object [@more@]

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-06433: error installing recovery catalog

RMAN> drop catalog
recovery catalog owner is RMAN_USER
enter DROP CATALOG command again to confirm catalog removal
RMAN> drop catalog
recovery catalog dropped
RMAN> create catalog tablespace rman_ts;
recovery catalog created
RMAN> exit

C:>rman catalog rman_user/ru@jaba
Recovery Manager: Release 9.2.0.6.0 - Production
Copyright (c) 1995, 2002, Oracle Corporation. All rights reserved.
connected to recovery catalog database

解决RMAN中 recovery catalog database: ORA-00955: name is already used by an existing object