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Migrating Non-CDB to CDB (Multitenant)

  • Introduction: Since Oracle 12c, the CDB (Container Database) and PDB (Pluggable Database) model has been the recommended architecture. Oracle has announced that non-CDB architecture is deprecated (and not supported starting from Oracle 21c). So migrating is necessary if you are upgrading to a newer Oracle version.

  • Patch consideration: If the instances are not at the same patch level, you will get PDB violations visible in the PDB_PLUG_IN_VIOLATIONS view.
    1. If the destination is at a higher patch level than the source, then run the datapatch -verbose utility on the destination instance in the normal way. It may throw any error and also suggest what action needs to be taken.
    2. If the destination is at a lower patch level than the source, you will need to run a datapatch -rollback operation.
  • Methods of migration:
    1. DBMS_PDB Package (Plugging method)
    2. Creating the PDB via DB Link
    3. Export/Import Method
    Here we will use the 1st & 2nd method as the 3rd method is the traditional method for migration using datapump.

    DBMS_PDB Package (Plugging method)

  • Prerequisites:
    • On the target, there one must be a multitenant (CDB) database, if not then create the same.
  • Environment:
  • Server Non-CDB CDB
    Hostname MISN REPORT
    IP 192.168.80.51 192.168.80.52
    OS OEL 9 OEL 9
    SID MISN REPORT
    Patch Level 19.24 19.27
    PDB NA MISD

    As per above details we have Non-CDB & CDB Databases on different servers. So we will create Non-CDB instance on target and then do the restoration with the backup of Source Non-CDB dataabase. We will use RMAN utility for the same.

  • Now proceed for migration activity step by step:

1. Take precheck & RMAN backup at source:
First create a table with test user so that data can be validated post migration:

SQL> show user
USER is "TEST1"
SQL>
SQL> def
DEFINE _DATE           = "27-APR-25" (CHAR)
DEFINE _CONNECT_IDENTIFIER = "misn" (CHAR)
DEFINE _USER           = "TEST1" (CHAR)
DEFINE _PRIVILEGE      = "" (CHAR)
DEFINE _SQLPLUS_RELEASE = "1924000000" (CHAR)
DEFINE _EDITOR         = "vi" (CHAR)
DEFINE _O_VERSION      = "Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.24.0.0.0" (CHAR)
DEFINE _O_RELEASE      = "1924000000" (CHAR)
SQL>
SQL>

SQL> CREATE TABLE COMPANY (EMP_ID INT,NAME VARCHAR(255), COMPANY VARCHAR(255)); 

Table created.


SQL> INSERT INTO COMPANY VALUES (101,'Yash','WIPRO');

1 row created.

SQL> INSERT INTO COMPANY VALUES (102,'Vijay','AIRTEL');

1 row created.

SQL> INSERT INTO COMPANY VALUES (103,'Riya','TCS');

1 row created.

SQL> commit;

Commit complete.

SQL> select count(*) from COMPANY;

  COUNT(*)
----------
         3
         
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.24.0.0.0
Now take Precheck & required backup:

[oracle@misn rmanmisn]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 14:04:47 2025
Version 19.24.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.24.0.0.0
SQL> set lines 200 pages 1000
col open_mode for a15
col HOST_NAME for a15
select NAME,DATABASE_ROLE,OPEN_MODE,INSTANCE_NUMBER,INSTANCE_NAME,HOST_NAME,VERSION,STARTUP_TIME,STATUS from gv$database,gv$instance;SQL> SQL> SQL>

NAME      DATABASE_ROLE    OPEN_MODE       INSTANCE_NUMBER INSTANCE_NAME    HOST_NAME       VERSION           STARTUP_T STATUS
--------- ---------------- --------------- --------------- ---------------- --------------- ----------------- --------- ------------
MISN      PRIMARY          READ WRITE                    1 MISN             misn          19.0.0.0.0        27-APR-25 OPEN

SQL> select BANNER_FULL from v$version;

BANNER_FULL
----------------------------------------------------------------------------------------------------------------------------------------------------------------
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.24.0.0.0


SQL> col ACTION_TIME for a20
SQL> col ACTION for a10
SQL> col STATUS for a10
SQL> col DESCRIPTION for a60
SQL> select patch_uid,patch_id,SOURCE_VERSION, TARGET_VERSION, action, status,action_time,description from dba_registry_sqlpatch;

 PATCH_UID   PATCH_ID SOURCE_VERSION  TARGET_VERSION  ACTION     STATUS     ACTION_TIME          DESCRIPTION
---------- ---------- --------------- --------------- ---------- ---------- -------------------- ------------------------------------------------------------
  25751445   36582781 19.1.0.0.0      19.24.0.0.0     APPLY      SUCCESS    26-APR-25 09.55.24.9 Database Release Update : 19.24.0.0.240716 (36582781)
                                                                            95644 PM


SQL> col comp_id for a10
SQL> col version for a11
SQL> col status for a10
SQL> col comp_name for a37
SQL> select comp_id,comp_name,version,status from dba_registry;

COMP_ID    COMP_NAME                             VERSION     STATUS
---------- ------------------------------------- ----------- ----------
CATALOG    Oracle Database Catalog Views         19.0.0.0.0  VALID
CATPROC    Oracle Database Packages and Types    19.0.0.0.0  VALID
RAC        Oracle Real Application Clusters      19.0.0.0.0  OPTION OFF
JAVAVM     JServer JAVA Virtual Machine          19.0.0.0.0  VALID
XML        Oracle XDK                            19.0.0.0.0  VALID
CATJAVA    Oracle Database Java Packages         19.0.0.0.0  VALID
APS        OLAP Analytic Workspace               19.0.0.0.0  VALID
XDB        Oracle XML Database                   19.0.0.0.0  VALID
OWM        Oracle Workspace Manager              19.0.0.0.0  VALID
CONTEXT    Oracle Text                           19.0.0.0.0  VALID
ORDIM      Oracle Multimedia                     19.0.0.0.0  VALID
SDO        Spatial                               19.0.0.0.0  VALID
XOQ        Oracle OLAP API                       19.0.0.0.0  VALID
OLS        Oracle Label Security                 19.0.0.0.0  VALID
DV         Oracle Database Vault                 19.0.0.0.0  VALID

15 rows selected.

SQL> select count(*) from dba_objects where status='INVALID';


  COUNT(*)
----------
         0
         

==> Stop Listener

[oracle@misn ~]$ lsnrctl status LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 27-APR-2025 13:35:56 Copyright (c) 1991, 2024, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=misn.localdomain)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 19.0.0.0.0 - Production Start Date 27-APR-2025 13:08:01 Uptime 0 days 0 hr. 27 min. 56 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/19.0.0/dbhome_1/network/admin/listener.ora Listener Log File /u01/app/oracle/diag/tnslsnr/misn/listener/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=misn.localdomain)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521))) Services Summary... Service "MISN" has 1 instance(s). Instance "MISN", status READY, has 1 handler(s) for this service... Service "MISNXDB" has 1 instance(s). Instance "MISN", status READY, has 1 handler(s) for this service... The command completed successfully [oracle@misn ~]$ [oracle@misn ~]$ lsnrctl stop LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 27-APR-2025 13:36:01 Copyright (c) 1991, 2024, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=misn.localdomain)(PORT=1521))) The command completed successfully [oracle@misn ~]$ [oracle@misn ~]$ sqlplus / as sysdba SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 13:50:44 2025 Version 19.24.0.0.0 Copyright (c) 1982, 2024, Oracle. All rights reserved. Connected to: Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production Version 19.24.0.0.0 SQL> alter system switch logfile; System altered. SQL> / System altered. SQL> create pfile='/u01/app/oracle/rmanmisn/initMISN.ora' from spfile; File created. SQL> exit Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production Version 19.24.0.0.0

==> Take Backup

[oracle@misn rmanmisn]$ rman target / Recovery Manager: Release 19.0.0.0.0 - Production on Sun Apr 27 13:50:16 2025 Version 19.24.0.0.0 Copyright (c) 1982, 2019, Oracle and/or its affiliates. All rights reserved. connected to target database: MISN (DBID=1539538097) RMAN> report schema; using target database control file instead of recovery catalog Report of database schema for database with db_unique_name MISN List of Permanent Datafiles =========================== File Size(MB) Tablespace RB segs Datafile Name ---- -------- -------------------- ------- ------------------------ 1 1110 SYSTEM YES /u01/app/oracle/oradata/MISN/system01.dbf 3 860 SYSAUX NO /u01/app/oracle/oradata/MISN/sysaux01.dbf 4 750 UNDOTBS1 YES /u01/app/oracle/oradata/MISN/undotbs01.dbf 7 5 USERS NO /u01/app/oracle/oradata/MISN/users01.dbf List of Temporary Files ======================= File Size(MB) Tablespace Maxsize(MB) Tempfile Name ---- -------- -------------------- ----------- -------------------- 1 184 TEMP 32767 /u01/app/oracle/oradata/MISN/temp01.dbf RMAN> RMAN> run { allocate channel ch1 device type disk; backup as compressed backupset database format '/u01/app/oracle/rmanmisn/Fullback_%T_%U'; backup as compressed backupset archivelog all format '/u01/app/oracle/rmanmisn/Archive_%T_%U'; backup current controlfile format '/u01/app/oracle/rmanmisn/Controlback_%T_%U'; release channel ch1; } allocated channel: ch1 channel ch1: SID=269 device type=DISK Starting backup at 27-APR-25 channel ch1: starting compressed full datafile backup set channel ch1: specifying datafile(s) in backup set input datafile file number=00001 name=/u01/app/oracle/oradata/MISN/system01.dbf input datafile file number=00003 name=/u01/app/oracle/oradata/MISN/sysaux01.dbf input datafile file number=00004 name=/u01/app/oracle/oradata/MISN/undotbs01.dbf input datafile file number=00007 name=/u01/app/oracle/oradata/MISN/users01.dbf channel ch1: starting piece 1 at 27-APR-25 channel ch1: finished piece 1 at 27-APR-25 piece handle=/u01/app/oracle/rmanmisn/Fullback_20250427_053nv2qj_5_1_1 tag=TAG20250427T135114 comment=NONE channel ch1: backup set complete, elapsed time: 00:03:15 Finished backup at 27-APR-25 Starting backup at 27-APR-25 current log archived channel ch1: starting compressed archived log backup set channel ch1: specifying archived log(s) in backup set input archived log thread=1 sequence=10 RECID=1 STAMP=1199484381 input archived log thread=1 sequence=11 RECID=2 STAMP=1199540312 input archived log thread=1 sequence=12 RECID=3 STAMP=1199540572 input archived log thread=1 sequence=13 RECID=4 STAMP=1199541053 input archived log thread=1 sequence=14 RECID=5 STAMP=1199541056 input archived log thread=1 sequence=15 RECID=6 STAMP=1199541271 channel ch1: starting piece 1 at 27-APR-25 channel ch1: finished piece 1 at 27-APR-25 piece handle=/u01/app/oracle/rmanmisn/Archive_20250427_063nv30o_6_1_1 tag=TAG20250427T135432 comment=NONE channel ch1: backup set complete, elapsed time: 00:00:45 Finished backup at 27-APR-25 Starting backup at 27-APR-25 channel ch1: starting full datafile backup set channel ch1: specifying datafile(s) in backup set including current control file in backup set channel ch1: starting piece 1 at 27-APR-25 channel ch1: finished piece 1 at 27-APR-25 piece handle=/u01/app/oracle/rmanmisn/Controlback_20250427_073nv326_7_1_1 tag=TAG20250427T135518 comment=NONE channel ch1: backup set complete, elapsed time: 00:00:01 Finished backup at 27-APR-25 Starting Control File and SPFILE Autobackup at 27-APR-25 piece handle=/u01/app/oracle/fast_recovery_area/MISN/autobackup/2025_04_27/o1_mf_s_1199541322_n0vthm91_.bkp comment=NONE Finished Control File and SPFILE Autobackup at 27-APR-25 released channel: ch1 RMAN> RMAN> exit Recovery Manager complete. [oracle@misn rmanmisn]$ pwd /u01/app/oracle/rmanmisn [oracle@misn rmanmisn]$ sqlplus / as sysdba SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 14:04:47 2025 Version 19.24.0.0.0 Copyright (c) 1982, 2024, Oracle. All rights reserved. Connected to: Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production Version 19.24.0.0.0

==> Transfer Backup

[oracle@misn rmanmisn]$ ls -lrth total 747M -rw-r-----. 1 oracle oinstall 617M Apr 27 13:54 Fullback_20250427_053nv2qj_5_1_1 -rw-r-----. 1 oracle oinstall 120M Apr 27 13:55 Archive_20250427_063nv30o_6_1_1 -rw-r-----. 1 oracle oinstall 11M Apr 27 13:55 Controlback_20250427_073nv326_7_1_1 -rw-r--r--. 1 oracle oinstall 1.2K Apr 27 14:05 initMISN.ora [oracle@misn rmanmisn]$ [oracle@misn rmanmisn]$ scp * oracle@report:/u01/app/oracle/rman The authenticity of host 'report (report)' can't be established. ED25519 key fingerprint is SHA256:u1O6svnS8kY1i6Mv88TDIlYsvqDyISi2Uz3ZBc8kKfY. This host key is known by the following other names/addresses: ~/.ssh/known_hosts:1: target Are you sure you want to continue connecting (yes/no/[fingerprint])? yes Warning: Permanently added 'report' (ED25519) to the list of known hosts. oracle@report's password: Archive_20250427_063nv30o_6_1_1 100% 119MB 43.2MB/s 00:02 Controlback_20250427_073nv326_7_1_1 100% 10MB 41.3MB/s 00:00 Fullback_20250427_053nv2qj_5_1_1 100% 616MB 22.1MB/s 00:27 initMISN.ora 100% 1148 352.0KB/s 00:00
2. Now we will restore the Non-CDB backup at target. Here will keep the instance name as MISNT:

[oracle@report rman]$ pwd
/u01/app/oracle/rman
[oracle@report rman]$ cat initMISNT.ora
MISNT.__data_transfer_cache_size=0
MISNT.__db_cache_size=1409286144
MISNT.__inmemory_ext_roarea=0
MISNT.__inmemory_ext_rwarea=0
MISNT.__java_pool_size=0
MISNT.__large_pool_size=16777216
MISNT.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
MISNT.__pga_aggregate_target=671088640
MISNT.__sga_target=1996488704
MISNT.__shared_io_pool_size=100663296
MISNT.__shared_pool_size=452984832
MISNT.__streams_pool_size=0
MISNT.__unified_pga_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/MISNT/adump'
*.audit_trail='db'
*.compatible='19.0.0'
*.control_files='/u01/app/oracle/oradata/MISNT/control01.ctl'
*.db_block_size=8192
*.db_name='MISN'
*.db_recovery_file_dest='/u01/app/oracle/fast_recovery_area'
*.db_recovery_file_dest_size=8256m
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=MISNTXDB)'
*.local_listener='LISTENER_MISNT'
*.log_archive_format='%t_%s_%r.dbf'
*.nls_language='AMERICAN'
*.nls_territory='AMERICA'
*.open_cursors=300
*.pga_aggregate_target=631m
*.processes=300
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=1892m
*.undo_tablespace='UNDOTBS1'
[oracle@report rman]$
[oracle@report rman]$ mkdir -p /u01/app/oracle/admin/MISNT/adump
[oracle@report rman]$
[oracle@report rman]$ mkdir -p /u01/app/oracle/oradata/MISNT/
[oracle@report rman]$ . oraenv
ORACLE_SID = [REPORT] ? MISNT
ORACLE_HOME = [/home/oracle] ? /u01/app/oracle/product/19.0.0/dbhome_1
The Oracle base remains unchanged with value /u01/app/oracle
[oracle@report rman]$
[oracle@report rman]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 14:33:29 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.

Connected to an idle instance.

SQL>  startup nomount pfile='/u01/app/oracle/rman/initMISNT.ora';
ORACLE instance started.

Total System Global Area 1996488376 bytes
Fixed Size                  8941240 bytes
Variable Size             469762048 bytes
Database Buffers         1509949440 bytes
Redo Buffers                7835648 bytes
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0
[oracle@report rman]$ ls
Archive_20250427_063nv30o_6_1_1  Controlback_20250427_073nv326_7_1_1  Fullback_20250427_053nv2qj_5_1_1  initMISNT.ora

[oracle@report rman]$ rman target /

Recovery Manager: Release 19.0.0.0.0 - Production on Sun Apr 27 14:38:04 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2019, Oracle and/or its affiliates.  All rights reserved.

connected to target database: MISN (not mounted)

RMAN> restore controlfile from '/u01/app/oracle/rman/Controlback_20250427_073nv326_7_1_1';
restore controlfile from '/u01/app/oracle/rman/Controlback_20250427_073nv326_7_1_1';
Starting restore at 27-APR-25
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=20 device type=DISK

channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
output file name=/u01/app/oracle/oradata/MISNT/control01.ctl
Finished restore at 27-APR-25


RMAN> alter database mount;
alter database mount;
released channel: ORA_DISK_1
Statement processed

RMAN> report schema;
report schema;
Starting implicit crosscheck backup at 27-APR-25
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=23 device type=DISK
Crosschecked 3 objects
Finished implicit crosscheck backup at 27-APR-25

Starting implicit crosscheck copy at 27-APR-25
using channel ORA_DISK_1
Finished implicit crosscheck copy at 27-APR-25

searching for all files in the recovery area
cataloging files...
no files cataloged

RMAN-06139: warning: control file is not current for REPORT SCHEMA
Report of database schema for database with db_unique_name MISN

List of Permanent Datafiles
===========================
File Size(MB) Tablespace           RB segs Datafile Name
---- -------- -------------------- ------- ------------------------
1    0        SYSTEM               ***     /u01/app/oracle/oradata/MISN/system01.dbf
3    0        SYSAUX               ***     /u01/app/oracle/oradata/MISN/sysaux01.dbf
4    0        UNDOTBS1             ***     /u01/app/oracle/oradata/MISN/undotbs01.dbf
7    0        USERS                ***     /u01/app/oracle/oradata/MISN/users01.dbf

List of Temporary Files
=======================
File Size(MB) Tablespace           Maxsize(MB) Tempfile Name
---- -------- -------------------- ----------- --------------------
1    20       TEMP                 32767       /u01/app/oracle/oradata/MISN/temp01.dbf


RMAN>

RMAN> catalog start with '/u01/app/oracle/rman';
catalog start with '/u01/app/oracle/rman';
using target database control file instead of recovery catalog
searching for all files that match the pattern /u01/app/oracle/rman

List of Files Unknown to the Database
=====================================
File Name: /u01/app/oracle/rman/Archive_20250427_063nv30o_6_1_1
File Name: /u01/app/oracle/rman/Controlback_20250427_073nv326_7_1_1
File Name: /u01/app/oracle/rman/Fullback_20250427_053nv2qj_5_1_1
File Name: /u01/app/oracle/rman/initMISNT.ora

Do you really want to catalog the above files (enter YES or NO)? YES
cataloging files...
cataloging done

List of Cataloged Files
=======================
File Name: /u01/app/oracle/rman/Archive_20250427_063nv30o_6_1_1
File Name: /u01/app/oracle/rman/Controlback_20250427_073nv326_7_1_1
File Name: /u01/app/oracle/rman/Fullback_20250427_053nv2qj_5_1_1

List of Files Which Were Not Cataloged
=======================================
File Name: /u01/app/oracle/rman/initMISNT.ora
  RMAN-07517: Reason: The file header is corrupted


RMAN> RUN
{
ALLOCATE CHANNEL c1 DEVICE TYPE disk;
ALLOCATE CHANNEL c2 DEVICE TYPE disk;
set newname for database to '/u01/app/oracle/oradata/MISNT/%b';
restore database;
switch datafile all;
switch tempfile all;
recover database;
release channel c1;
release channel c2;
}RUN
2> {
3> ALLOCATE CHANNEL c1 DEVICE TYPE disk;
4> ALLOCATE CHANNEL c2 DEVICE TYPE disk;
5> set newname for database to '/u01/app/oracle/oradata/MISNT/%b';
6> restore database;
7> switch datafile all;
8> switch tempfile all;
9> recover database;
10> release channel c1;
11> release channel c2;
12>
}
allocated channel: c1
channel c1: SID=17 device type=DISK

allocated channel: c2
channel c2: SID=259 device type=DISK

executing command: SET NEWNAME

Starting restore at 27-APR-25

channel c1: starting datafile backup set restore
channel c1: specifying datafile(s) to restore from backup set
channel c1: restoring datafile 00001 to /u01/app/oracle/oradata/MISNT/system01.dbf
channel c1: restoring datafile 00003 to /u01/app/oracle/oradata/MISNT/sysaux01.dbf
channel c1: restoring datafile 00004 to /u01/app/oracle/oradata/MISNT/undotbs01.dbf
channel c1: restoring datafile 00007 to /u01/app/oracle/oradata/MISNT/users01.dbf
channel c1: reading from backup piece /u01/app/oracle/rman/Fullback_20250427_053nv2qj_5_1_1
channel c1: piece handle=/u01/app/oracle/rman/Fullback_20250427_053nv2qj_5_1_1 tag=TAG20250427T135114
channel c1: restored backup piece 1
channel c1: restore complete, elapsed time: 00:03:28
Finished restore at 27-APR-25

datafile 1 switched to datafile copy
input datafile copy RECID=5 STAMP=1199544353 file name=/u01/app/oracle/oradata/MISNT/system01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=6 STAMP=1199544354 file name=/u01/app/oracle/oradata/MISNT/sysaux01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=7 STAMP=1199544354 file name=/u01/app/oracle/oradata/MISNT/undotbs01.dbf
datafile 7 switched to datafile copy
input datafile copy RECID=8 STAMP=1199544354 file name=/u01/app/oracle/oradata/MISNT/users01.dbf

renamed tempfile 1 to /u01/app/oracle/oradata/MISNT/temp01.dbf in control file

Starting recover at 27-APR-25

starting media recovery

channel c1: starting archived log restore to default destination
channel c1: restoring archived log
archived log thread=1 sequence=15
channel c1: reading from backup piece /u01/app/oracle/rman/Archive_20250427_063nv30o_6_1_1
channel c1: piece handle=/u01/app/oracle/rman/Archive_20250427_063nv30o_6_1_1 tag=TAG20250427T135432
channel c1: restored backup piece 1
channel c1: restore complete, elapsed time: 00:00:01
archived log file name=/u01/app/oracle/fast_recovery_area/MISN/archivelog/2025_04_27/o1_mf_1_15_n0vxgfm5_.arc thread=1 sequence=15
channel default: deleting archived log(s)
archived log file name=/u01/app/oracle/fast_recovery_area/MISN/archivelog/2025_04_27/o1_mf_1_15_n0vxgfm5_.arc RECID=7 STAMP=1199544357
unable to find archived log
archived log thread=1 sequence=16
RMAN Command Id : 2025-04-27T14:41:25
RMAN Command Id : 2025-04-27T14:41:25
RMAN Command Id : 2025-04-27T14:41:25
released channel: c1
released channel: c2
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 04/27/2025 14:46:01
RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 16 and starting SCN of 2211545
RMAN Client Diagnostic Trace file : /u01/app/oracle/diag/clients/user_oracle/RMAN_3959702396_110/trace/ora_rman_6436_0.trc
RMAN Server Diagnostic Trace file : /u01/app/oracle/diag/rdbms/misn/MISNT/trace/MISNT_ora_6442.trc

RMAN>exit;


[oracle@report ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 15:00:59 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0

SQL> set lines 200 pages 1000
col open_mode for a15
col HOST_NAME for a15
select NAME,DATABASE_ROLE,OPEN_MODE,INSTANCE_NUMBER,INSTANCE_NAME,HOST_NAME,VERSION,STARTUP_TIME,STATUS from gv$database,gv$instance;SQL> SQL> SQL>

NAME      DATABASE_ROLE    OPEN_MODE       INSTANCE_NUMBER INSTANCE_NAME    HOST_NAME       VERSION           STARTUP_T STATUS
--------- ---------------- --------------- --------------- ---------------- --------------- ----------------- --------- ------------
MISN      PRIMARY          MOUNTED                       1 MISNT            report          19.0.0.0.0        27-APR-25 MOUNTED

SQL>
SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open


SQL> alter database open RESETLOGS;

Database altered.

SQL> create spfile from pfile='/u01/app/oracle/rman/initMISNT.ora';

File created.

SQL> shut immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
SQL> startup
ORACLE instance started.

Total System Global Area 1996488376 bytes
Fixed Size                  8941240 bytes
Variable Size             469762048 bytes
Database Buffers         1509949440 bytes
Redo Buffers                7835648 bytes
Database mounted.
Database opened.
SQL>

3. Now open the Non-CDB Database in read-only and describe the non-DBC using the DBMS_PDB.DESCRIBE procedure. It will generate an XML file. At last stop the database:

[oracle@report ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 15:00:59 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0
SQL> shut immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
SQL> startup open read only;
ORACLE instance started.

Total System Global Area 1996488376 bytes
Fixed Size                  8941240 bytes
Variable Size             469762048 bytes
Database Buffers         1509949440 bytes
Redo Buffers                7835648 bytes
Database mounted.
Database opened.
SQL>
SQL> set lines 200 pages 1000
SQL> col open_mode for a15
SQL> col HOST_NAME for a15
SQL> select NAME,DATABASE_ROLE,OPEN_MODE,INSTANCE_NUMBER,INSTANCE_NAME,HOST_NAME,VERSION,STARTUP_TIME,STATUS from gv$database,gv$instance;

NAME      DATABASE_ROLE    OPEN_MODE       INSTANCE_NUMBER INSTANCE_NAME    HOST_NAME       VERSION           STARTUP_T STATUS
--------- ---------------- --------------- --------------- ---------------- --------------- ----------------- --------- ------------
MISN      PRIMARY          READ ONLY                     1 MISNT            report          19.0.0.0.0        27-APR-25 OPEN

SQL> select name from v$datafile;

NAME
----------------------------------------------------
/u01/app/oracle/oradata/MISNT/system01.dbf
/u01/app/oracle/oradata/MISNT/sysaux01.dbf
/u01/app/oracle/oradata/MISNT/undotbs01.dbf
/u01/app/oracle/oradata/MISNT/users01.dbf

SQL> select name from v$tempfile;

NAME
-------------------------------------------------
/u01/app/oracle/oradata/MISNT/temp01.dbf

SQL> exec dbms_pdb.describe('/home/oracle/MISN_noncdb.xml');

PL/SQL procedure successfully completed.

SQL>
SQL> shut immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
4. Now login into the CDB database and check the compatibility:

[oracle@report ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 15:00:59 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0

SQL> set lines 200 pages 1000
SQL> col open_mode for a15
SQL> col HOST_NAME for a15
SQL> select NAME,DATABASE_ROLE,OPEN_MODE,INSTANCE_NUMBER,INSTANCE_NAME,HOST_NAME,VERSION,STARTUP_TIME,STATUS from gv$database,gv$instance;

NAME      DATABASE_ROLE    OPEN_MODE       INSTANCE_NUMBER INSTANCE_NAME    HOST_NAME       VERSION           STARTUP_T STATUS
--------- ---------------- --------------- --------------- ---------------- --------------- ----------------- --------- ------------
REPORT    PRIMARY          READ WRITE                    1 REPORT           report          19.0.0.0.0        27-APR-25 OPEN

SQL> show pdbs

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 MISD                           READ WRITE NO
SQL>

SQL> SET SERVEROUTPUT ON
SQL> DECLARE
     compatible CONSTANT VARCHAR2(3) := CASE DBMS_PDB.CHECK_PLUG_COMPATIBILITY(pdb_descr_file => '/home/oracle/MISN_noncdb.xml')
     WHEN TRUE THEN 'YES'
     ELSE 'NO'
     END;
     BEGIN
     DBMS_OUTPUT.PUT_LINE(compatible);
     END;
     /  
NO

PL/SQL procedure successfully completed.

==> The ideal output is YES, but in our case its NO. So we will query the PDB_PLUG_IN_VIOLATIONS view to find the cause.

SQL> set lines 333 pages 333 SQL> col NAME for a20 SQL> col CAUSE for a30 SQL> col MESSAGE for a70 SQL> select name,cause,type,message,status,action from PDB_PLUG_IN_VIOLATIONS where name='MISN'; NAME CAUSE TYPE MESSAGE STATUS ACTION ----- --------------- --------- ---------------------------------------------------------------------- --------- ---------------------------------------- MISN Non-CDB to PDB WARNING PDB plugged in is a non-CDB, requires noncdb_to_pdb.sql be run. PENDING Run noncdb_to_pdb.sql. MISN SQL Patch ERROR '19.27.0.0.0 Release_Update 2504061311' is installed in the CDB but '1 PENDING Call datapatch to install in the PDB or 9.24.0.0.0 Release_Update 2406272351' is installed in the PDB the CDB
Now as per the above output, we can see that in ACTION column which suggests to run the datapatch. So let's proceed for the same.
5. Now start the Non-CDB database and invoke datapatch:

[oracle@report ~]$ . oraenv
ORACLE_SID = [REPORT] ? MISNT
ORACLE_HOME = [/home/oracle] ? /u01/app/oracle/product/19.0.0/dbhome_1
The Oracle base remains unchanged with value /u01/app/oracle
[oracle@report ~]$
[oracle@report ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 15:03:56 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.

Connected to an idle instance.

SQL>
SQL> startup
ORACLE instance started.

Total System Global Area 1996488376 bytes
Fixed Size                  8941240 bytes
Variable Size             469762048 bytes
Database Buffers         1509949440 bytes
Redo Buffers                7835648 bytes
Database mounted.
Database opened.
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0
[oracle@report ~]$
[oracle@report ~]$ cd $ORACLE_HOME/OPatch
[oracle@report OPatch]$
[oracle@report OPatch]$ ./datapatch -db MISNT -verbose
SQL Patching tool version 19.27.0.0.0 Production on Sun Apr 27 15:05:02 2025
Copyright (c) 2012, 2025, Oracle.  All rights reserved.

Log file for this invocation: /u01/app/oracle/cfgtoollogs/sqlpatch/sqlpatch_8569_2025_04_27_15_05_02/sqlpatch_invocation.log

Connecting to database...OK
Gathering database info...done
Bootstrapping registry and package to current versions...done
Determining current state...done

Current state of interim SQL patches:
  No interim patches found

Current state of release update SQL patches:
  Binary registry:
    19.27.0.0.0 Release_Update 250406131139: Installed
  SQL registry:
    Applied 19.24.0.0.0 Release_Update 240627235157 successfully on 26-APR-25 09.55.24.995644 PM

Adding patches to installation queue and performing prereq checks...done
Installation queue:
  No interim patches need to be rolled back
  Patch 37642901 (Database Release Update : 19.27.0.0.250415 (37642901)):
    Apply from 19.24.0.0.0 Release_Update 240627235157 to 19.27.0.0.0 Release_Update 250406131139
  No interim patches need to be applied

Installing patches...
Patch installation complete.  Total patches installed: 1

Validating logfiles...done
Patch 37642901 apply: SUCCESS
  logfile: /u01/app/oracle/cfgtoollogs/sqlpatch/37642901/27123174/37642901_apply_MISN_2025Apr27_15_06_38.log (no errors)
SQL Patching tool complete on Sun Apr 27 15:14:21 2025
[oracle@report OPatch]$
[oracle@report OPatch]$ !sq
sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 15:21:11 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0

SQL>
SQL> shut immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> def
DEFINE _DATE           = "27-APR-25" (CHAR)
DEFINE _CONNECT_IDENTIFIER = "MISNT" (CHAR)
DEFINE _USER           = "SYS" (CHAR)
DEFINE _PRIVILEGE      = "AS SYSDBA" (CHAR)
DEFINE _SQLPLUS_RELEASE = "1927000000" (CHAR)
DEFINE _EDITOR         = "vi" (CHAR)
DEFINE _O_VERSION      = "Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0" (CHAR)
DEFINE _O_RELEASE      = "1927000000" (CHAR)
SQL>
SQL> startup open read only;
ORACLE instance started.

Total System Global Area 1996488376 bytes
Fixed Size                  8941240 bytes
Variable Size             536870912 bytes
Database Buffers         1442840576 bytes
Redo Buffers                7835648 bytes
Database mounted.
Database opened.
SQL>
SQL> exec dbms_pdb.describe('/home/oracle/MISN_noncdb.xml');

PL/SQL procedure successfully completed.

SQL>
SQL> shut immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> exit
Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0
[oracle@report OPatch]$
6. Now again login into CDB and check the compatibility:

[oracle@report ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 15:22:50 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0

SQL> def
DEFINE _DATE           = "27-APR-25" (CHAR)
DEFINE _CONNECT_IDENTIFIER = "REPORT" (CHAR)
DEFINE _USER           = "SYS" (CHAR)
DEFINE _PRIVILEGE      = "AS SYSDBA" (CHAR)
DEFINE _SQLPLUS_RELEASE = "1927000000" (CHAR)
DEFINE _EDITOR         = "vi" (CHAR)
DEFINE _O_VERSION      = "Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0" (CHAR)
DEFINE _O_RELEASE      = "1927000000" (CHAR)
SQL>
SQL> SET SERVEROUTPUT ON
SQL>
SQL> DECLARE
     compatible CONSTANT VARCHAR2(3) := CASE DBMS_PDB.CHECK_PLUG_COMPATIBILITY(pdb_descr_file => '/home/oracle/MISN_noncdb.xml')
     WHEN TRUE THEN 'YES'
     ELSE 'NO'
     END;
     BEGIN
     DBMS_OUTPUT.PUT_LINE(compatible);
     END;
     /  
YES

PL/SQL procedure successfully completed.

SQL>

Now we get the desired value, so proceeding further.
7. Now plug the Non-CDB database MISN into CDB REPORT database. We have below options for maintaing the database files:
  1. COPY - With this option, all data files of Non-CDB will remain untouched. For PDB files will be copied to the new location, provided with the parameter FILE_NAME_CONVERT.
  2. NOCOPY - Existing files will be used and after completion of the operation, Non-CDB will not remain usable. As new PDB is using the same data files.
  3. MOVE - using parameter FILE_NAME_CONVERT, existing datafiles will be moved to the new location, hence after the operation completion, Non-CDB will not be usable.
Here we will be using the COPY option.

==> Create Directory for datafiles & tempfiles.

[oracle@report ~]$ mkdir -p /u01/app/oracle/oradata/PDB/MISN [oracle@report ~]$ [oracle@report ~]$ sqlplus / as sysdba SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 15:27:38 2025 Version 19.27.0.0.0 Copyright (c) 1982, 2024, Oracle. All rights reserved. Connected to: Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production Version 19.27.0.0.0 SQL> SQL> show pdbs CON_ID CON_NAME OPEN MODE RESTRICTED ---------- ------------------------------ ---------- ---------- 2 PDB$SEED READ ONLY NO 3 MISD READ WRITE NO SQL> SQL> set lines 400 pages 4000 SQL> col PDB_NAME for a30 SQL> select name, open_mode, cdb, pdb_name, status from v$database,dba_pdbs; NAME OPEN_MODE CDB PDB_NAME STATUS --------- -------------------- --- ------------------------------ ---------- REPORT READ WRITE YES MISD NORMAL REPORT READ WRITE YES PDB$SEED NORMAL SQL> SQL> create pluggable database MISN using '/home/oracle/MISN_noncdb.xml' copy file_name_convert=('/u01/app/oracle/oradata/MISNT','/u01/app/oracle/oradata/PDB/MISN'); Pluggable database created. SQL> SQL> set lines 400 pages 4000 SQL> col PDB_NAME for a30 SQL> select name, open_mode, cdb, pdb_name, status from v$database,dba_pdbs; NAME OPEN_MODE CDB PDB_NAME STATUS --------- -------------------- --- ------------------------------ ---------- REPORT READ WRITE YES MISD NORMAL REPORT READ WRITE YES PDB$SEED NORMAL REPORT READ WRITE YES MISN NEW SQL> alter session set container=MISN; Session altered. SQL> select name from v$datafile; NAME -------------------------------------------------------------- /u01/app/oracle/oradata/PDB/MISN/system01.dbf /u01/app/oracle/oradata/PDB/MISN/sysaux01.dbf /u01/app/oracle/oradata/PDB/MISN/undotbs01.dbf /u01/app/oracle/oradata/PDB/MISN/users01.dbf SQL> SQL> select name from v$tempfile; NAME -------------------------------------------------------------- /u01/app/oracle/oradata/PDB/MISN/temp01.dbf SQL>
8. Now we need to run the noncdb_to_pdb.sql script on new PDB MISN.

[oracle@report ~]$ sqlplus / as sysdba

SQL*Plus: Release 19.0.0.0.0 - Production on Mon Apr 28 19:07:21 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.


Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0

SQL>
SQL> show pdbs

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 MISD                           READ WRITE NO
         4 MISN                           MOUNTED 
         
SQL> alter session  set container=MISN;

Session altered.

SQL> @?/rdbms/admin/noncdb_to_pdb.sql
SQL> SET FEEDBACK 1
SQL> SET NUMWIDTH 10
SQL> SET LINESIZE 80
SQL> SET TRIMSPOOL ON
SQL> SET TAB OFF
SQL> SET PAGESIZE 100
SQL> SET VERIFY OFF
SQL>
SQL> WHENEVER SQLERROR EXIT;
SQL>
SQL> DOC
DOC>#######################################################################
DOC>#######################################################################
DOC>   The following statement will cause an "ORA-01403: no data found"
DOC>   error if we're not in a PDB.
DOC>   This script is intended to be run right after plugin of a PDB,
DOC>   while inside the PDB.
DOC>#######################################################################
DOC>#######################################################################
DOC>#

.................... ....................

SQL> -- leave the PDB in the same state it was when we started SQL> BEGIN 2 execute immediate '&open_sql &restricted_state'; 3 EXCEPTION 4 WHEN OTHERS THEN 5 BEGIN 6 IF (sqlcode <> -900) THEN 7 RAISE; 8 END IF; 9 END; 10 END; 11 / PL/SQL procedure successfully completed. SQL> SQL> WHENEVER SQLERROR CONTINUE; SQL> SQL>
8. Now open the new PDB MISN and do the post check.

SQL> show pdbs

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 MISD                           READ WRITE NO
         4 MISN                           READ WRITE NO
SQL> select BANNER_FULL from v$version;

BANNER_FULL
---------------------------------------------------------------------------
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0


SQL> alter session set container=MISN;

Session altered.
SQL>
SQL> alter pluggable database open;

Pluggable database altered.

SQL> alter pluggable database save state;

Pluggable database altered.

SQL> col comp_id for a10
SQL> col version for a11
SQL> col status for a10
SQL> col comp_name for a37
SQL> select comp_id,comp_name,version,status from dba_registry;

COMP_ID    COMP_NAME                             VERSION     STATUS
---------- ------------------------------------- ----------- ----------
CATALOG    Oracle Database Catalog Views         19.0.0.0.0  VALID
CATPROC    Oracle Database Packages and Types    19.0.0.0.0  VALID
RAC        Oracle Real Application Clusters      19.0.0.0.0  OPTION OFF
JAVAVM     JServer JAVA Virtual Machine          19.0.0.0.0  VALID
XML        Oracle XDK                            19.0.0.0.0  VALID
CATJAVA    Oracle Database Java Packages         19.0.0.0.0  VALID
APS        OLAP Analytic Workspace               19.0.0.0.0  VALID
XDB        Oracle XML Database                   19.0.0.0.0  VALID
OWM        Oracle Workspace Manager              19.0.0.0.0  VALID
CONTEXT    Oracle Text                           19.0.0.0.0  VALID
ORDIM      Oracle Multimedia                     19.0.0.0.0  VALID
SDO        Spatial                               19.0.0.0.0  VALID
XOQ        Oracle OLAP API                       19.0.0.0.0  VALID
OLS        Oracle Label Security                 19.0.0.0.0  VALID
DV         Oracle Database Vault                 19.0.0.0.0  VALID

15 rows selected.

SQL>  select count(*) from dba_objects where status='INVALID';

  COUNT(*)
----------
         0

SQL>exit


[oracle@report ~]$ sqlplus test1@misn

SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 27 16:13:31 2025
Version 19.27.0.0.0

Copyright (c) 1982, 2024, Oracle.  All rights reserved.

Enter password:
Last Successful login time: Sun Apr 27 2025 13:45:15 +05:30

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.27.0.0.0

SQL> show user
USER is "TEST1"
SQL>
SQL> select count(*) from company;

  COUNT(*)
----------
         3

Now the Non-CDB database MISN has been successfully plugged in the CDB database REPORT.
We will see the 2nd Method Creating the PDB via DB Link in the next article.


Thank you for reading!

I hope this content has been helpful to you. Your feedback and suggestions are always welcome — feel free to leave a comment or reach out with any queries.

Abhishek Shrivastava

📧 Email: oraeasyy@gmail.com
🌐 Website: www.oraeasy.com

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