sqlplus sys@ as sysdba 1521 手动修改srv对应的pdb

++ Connecting via rman to CDB$ROOT and running commands fail with below error showing rman is connected to PDB instead of CDB$ROOT :

rman target 'sys@"<scan_name>.<domain_name>:1521/<db_unique_name>.<domain_name>:DEDICATED"'

Recovery Manager: Release 12.1.0.2.0 - Production on Wed Jun 7 13:38:56 2023

Copyright (c) 1982, 2014, Oracle and/or its affiliates.  All rights reserved.

target database Password:
connected to target database: DBA21CDB (DBID=1393061330)

RMAN> configure compression algorithm 'low';

using target database control file instead of recovery catalog
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of configure command at 06/07/2023 13:39:23
RMAN-07536: command not allowed when connected to a Pluggable Database

Cause

++ Connecting from sqlplus using same connect string shows connections are going to PDB instead of CDB$ROOT :

sqlplus 'sys@"<scan_name>.<domain_name>:1521/<db_unique_name>.<domain_name>:DEDICATED" as sysdba'
SQL> show pdbs

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         3 PDB1                          READ WRITE NO
        
++ Output of below query shows service is pointing to PDB (con_id=3) instead of CDB$ROOT :
select name, network_name, con_id# from cdb_service$;

<db_unique_name>.<domain_name>                 <db_unique_name>.<domain_name>           3       <<<<<<<<<<<<<<<<<<<service is pointing to CON_ID 3

Solution

Drop and recreate the service for CDB

OR


1. update cdb_service$ with correct container id for PDB service -

sql> update cdb_service$ set con_id#=1 where name='<db_unique_name>.<domain_name> ';
SQL> commit;


2. Restart CDB using srvctl

srvctl stop databsae -db <db_unique_name>
srvctl start database -db <db_unique_name>

3. After restart again check cdb_service$ is pointing to CON_ID# 1

SQL> select name, network_name, con_id# from cdb_service$

<db_unique_name>.<domain_name>                 <db_unique_name>.<domain_name>           1