将在刚才创建的恢复目录中注册 test0924 数据库。
1) 确定 test0924 数据库环境。
[oracle@rtest ~]$ export ORACLE_SID=test0924
2) 使用 RMAN 连接到目标数据库（要注册的数据库）和恢复目录数据库。
[oracle@rtest ~]$ rman target / catalog rcatowner@rcat1028
Recovery Manager: Release 11.2.0.3.0 - Production on Mon Oct 28 16:13:52 2013
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: TEST0924 (DBID=2720875862)
recovery catalog database Password: ******
connected to recovery catalog database
RMAN>
3) 在恢复目录中注册数据库。
RMAN> register database;
database registered in recovery catalog
starting full resync of recovery catalog
full resync complete
RMAN> exit
Recovery Manager complete.
[oracle@rtest ~]$