1.1. RMAN连接数据库
RMAN可通过操作系统认证和密码文件两种方式连接到一个目标数据库，使用RMAN备份恢复工具的用户需要具有SYSDBA或SYSBACKUP系统权限，如果用户需要连接到恢复目录，需要被授予RECOVERY_CATALOG_OWNER对象权限。
D:\instantclient_12_2>sqlplus sys/密码@clonepdb_plug as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Mon Jan 29 10:50:45 2018
Copyright (c) 1982, 2016, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
[email protected]_plugPDB> create user cndba identified by cndba
2 /
User created.
Elapsed: 00:00:01.30
[email protected]_plugPDB> grant sysbackup to cndba;
Grant succeeded.
Elapsed: 00:00:00.42
C:\Users\Administrator>rman
恢复管理器: Release 12.2.0.1.0 - Production on 星期一 1月 29 10:51:10 2018
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
RMAN> connect target "cndba/[email protected]_plug as sysbackup"
已连接到目标数据库: NEWTEST:CLONEPDB_PLUG (DBID=50957894)
C:\Users\Administrator>rman
恢复管理器: Release 12.2.0.1.0 - Production on 星期一 1月 29 10:55:35 2018
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
RMAN> connect target "cndba/[email protected] as sysbackup"
已连接到目标数据库: NEWTEST (DBID=1779551310)
D:\instantclient_12_2>sqlplus sys/密码@newtest as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Mon Jan 29 10:55:16 2018
Copyright (c) 1982, 2016, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
[email protected]CDB> create user c##cndba identified by c##cndba
2 /
User created.
Elapsed: 00:00:00.21
[email protected]CDB> grant sysbackup to c##cndba;
Grant succeeded.
Elapsed: 00:00:00.07
C:\Users\Administrator>rman
恢复管理器: Release 12.2.0.1.0 - Production on 星期一 1月 29 10:52:59 2018
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
RMAN> connect target "c##cndba/[email protected]_plug as sysbackup"
已连接到目标数据库: NEWTEST:CLONEPDB_PLUG (DBID=50957894)
C:\Users\Administrator>rman
恢复管理器: Release 12.2.0.1.0 - Production on 星期一 1月 29 10:53:54 2018
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
RMAN> connect target "c##cndba/[email protected] as sysbackup"
已连接到目标数据库: NEWTEST (DBID=1779551310)
说明sysbackup用户没有公用和本地用户区别
原文地址：http://blog.51cto.com/shurk/2066285