Tuesday, May 13, 2025

Migrating Non-CDB to CDB (Multitenant) using DB Link

  • 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
    In previous article Migrating Non-CDB to CDB ((Plugging method) we have used the 1st method. Now here we will use the 2nd Method "Creating the PDB via DB Link"

    Creating the PDB via DB Link

  • Prerequisites:
    • Connectivity should be established between Non-CDB & CDB database servers.
  • 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,MISN

  • Now proceed for migration activity step by step:

  • 1. On source Non-CDB, grant privilege of creating PDB to user which will be used in DB link. Here we are using System user:
    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 & provide grant:
    
    [oracle@misn ]$ 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
    SQL> select name from v$datafile;
    
    NAME
    --------------------------------------------------
    /u01/app/oracle/oradata/MISN/system01.dbf
    /u01/app/oracle/oradata/MISN/sysaux01.dbf
    /u01/app/oracle/oradata/MISN/undotbs01.dbf
    /u01/app/oracle/oradata/MISN/users01.dbf
    
    SQL> select name from v$tempfile;
    
    NAME
    --------------------------------------------------
    /u01/app/oracle/oradata/MISN/temp01.dbf         
    
    
    

    ==> Now provide grant.

    SQL> grant create pluggable database to system; Grant succeeded.
    2. Now in target, add Non-CDB TNS entry in CDB tnsanames.ora file and test connectivity:
    
    
    [oracle@report ~]$ cat /u01/app/oracle/product/19.0.0/dbhome_1/network/admin/tnsnames.ora
    # tnsnames.ora Network Configuration File: /u01/app/oracle/product/19.0.0/dbhome_1/network/admin/tnsnames.ora
    # Generated by Oracle configuration tools.
    
    REPORT =
      (DESCRIPTION =
        (ADDRESS = (PROTOCOL = TCP)(HOST = report.localdomain)(PORT = 1521))
        (CONNECT_DATA =
          (SERVER = DEDICATED)
          (SERVICE_NAME = REPORT)
        )
      )
    
    LISTENER_REPORT =
      (ADDRESS = (PROTOCOL = TCP)(HOST = report.localdomain)(PORT = 1521))
    
    
    MISN =
      (DESCRIPTION =
        (ADDRESS_LIST =
          (ADDRESS = (PROTOCOL = TCP)(HOST = misn.localdomain)(PORT = 1521))
        )
        (CONNECT_DATA =
          (SERVICE_NAME = misn)
        )
      )
      
    
    [oracle@report ~]$ tnsping misn
    
    TNS Ping Utility for Linux: Version 19.0.0.0.0 - Production on 28-APR-2025 18:52:55
    
    Copyright (c) 1997, 2025, Oracle.  All rights reserved.
    
    Used parameter files:
    /u01/app/oracle/product/19.0.0/dbhome_1/network/admin/sqlnet.ora
    
    
    Used TNSNAMES adapter to resolve the alias
    Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = misn.localdomain)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = misn)))
    OK (0 msec)
    [oracle@report ~]$
    
    3. Now create the public DB link in CDB and test it:
    
    [oracle@report ~]$ sqlplus / as sysdba
    
    SQL*Plus: Release 19.0.0.0.0 - Production on Mon Apr 28 18:53:23 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> 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>
    SQL> CREATE DATABASE LINK "MIGLINK" CONNECT TO "SYSTEM" IDENTIFIED BY sys using 'MISN';
    
    Database link created.
    
    SQL> select sysdate from dual@MIGLINK;
    
    SYSDATE
    ---------
    28-APR-25
    
    SQL>
    
    4. Now create the PDB using DB Link. 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.
    
    [oracle@report ~]$ mkdir -p /u01/app/oracle/oradata/PDB/PRODN   --> Create Directory for datafiles & tempfiles.
    [oracle@report ~]$
    [oracle@report ~]$ !sq
    sqlplus / as sysdba
    
    SQL*Plus: Release 19.0.0.0.0 - Production on Mon Apr 28 18:58:17 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>
    SQL> show pdbs
    
        CON_ID CON_NAME                       OPEN MODE  RESTRICTED
    ---------- ------------------------------ ---------- ----------
             2 PDB$SEED                       READ ONLY  NO
             3 MISD                           READ WRITE NO
             4 MISN                           READ WRITE NO
    SQL>
    SQL> CREATE PLUGGABLE DATABASE PROD from non$cdb@MIGLINK  file_name_convert=('/u01/app/oracle/oradata/MISN','/u01/app/oracle/oradata/PDB/PROD');
    
    Pluggable database created.
    
    SQL> show pdbs
    
        CON_ID CON_NAME                       OPEN MODE  RESTRICTED
    ---------- ------------------------------ ---------- ----------
             2 PDB$SEED                       READ ONLY  NO
             3 MISD                           READ WRITE NO
             4 MISN                           READ WRITE NO
             5 PROD                           MOUNTED
    SQL> set lines 400 pages 4000
    SQL> col PDB_NAME for a30
    SQL> select name, open_mode, cdb, pdb_name, status from v$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                           NORMAL
    REPORT    READ WRITE           YES PROD                           NEW
    
    SQL> alter session set container=PROD;
    
    Session altered.
    
    SQL> select name from v$datafile;
    
    NAME
    ---------------------------------------------------
    /u01/app/oracle/oradata/PDB/PROD/system01.dbf
    /u01/app/oracle/oradata/PDB/PROD/sysaux01.dbf
    /u01/app/oracle/oradata/PDB/PROD/undotbs01.dbf
    /u01/app/oracle/oradata/PDB/PROD/users01.dbf
    
    SQL> select name from v$tempfile;
    
    NAME
    ---------------------------------------------------
    /u01/app/oracle/oradata/PDB/PROD/temp01.dbf
    
    
    
    8. Now we need to run the noncdb_to_pdb.sql script on new PDB PROD.
    
    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
             5 PROD                           MOUNTED
    SQL>
    SQL>
    SQL>
    SQL> alter session  set container=PROD;
    
    Session altered.
    
    SQL>
    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 PROD 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
             5 PROD                           MOUNTED
    SQL> alter pluggable database PROD open;
    
    Warning: PDB altered with errors.
    
    SQL>
    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
             5 PROD                           READ WRITE YES
    
    As per the above output, Non-CDB has been migrated into PDB PROD, but it is in Restricted mode. So let's resolve this.
    8. Now 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='PROD';
    NAME                 CAUSE                          TYPE      MESSAGE                                                                  STATUS
    -------------------- ------------------------------ --------- ----------------------------------------------------------------------   ---------
    PROD                 Non-CDB to PDB                 ERROR     PDB plugged in is a non-CDB, requires noncdb_to_pdb.sql be run.          RESOLVED
    PROD                 SQL Patch                      ERROR     '19.27.0.0.0 Release_Update 2504061311' is installed in the CDB but	   PENDING
    															  '19.24.0.0.0 Release_Update 2406272351' is installed in the PDB
                                                                  
    
    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.
    
     
    [oracle@report ~]$ cd $ORACLE_HOME/OPatch
    [oracle@report OPatch]$  ./datapatch -verbose
    SQL Patching tool version 19.27.0.0.0 Production on Mon Apr 28 20:33:40 2025
    Copyright (c) 2012, 2025, Oracle.  All rights reserved.
    
    Log file for this invocation: /u01/app/oracle/cfgtoollogs/sqlpatch/sqlpatch_16512_2025_04_28_20_33_40/sqlpatch_invocation.log
    
    Connecting to database...OK
    Gathering database info...
    done
    
    Note:  Datapatch will only apply or rollback SQL fixes for PDBs
           that are in an open state, no patches will be applied to closed PDBs.
           Please refer to Note: Datapatch: Database 12c Post Patch SQL Automation
           (Doc ID 1585822.1)
    
    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
      PDB CDB$ROOT:
        Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 27-APR-25 11.51.35.558320 AM
      PDB MISD:
        Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 27-APR-25 11.58.48.003402 AM
      PDB MISN:
        Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 27-APR-25 03.12.59.773550 PM
      PDB PDB$SEED:
        Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 27-APR-25 11.58.58.243642 AM
      PDB PROD:
        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:
      For the following PDBs: CDB$ROOT PDB$SEED MISD MISN
        No interim patches need to be rolled back
        No release update patches need to be installed
        No interim patches need to be applied
      For the following PDBs: PROD
        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
    
    
    WARNING: Following components are NOT in a valid state.
             This could cause patching failure. If it does, consider
             running utlrp.sql to bring components to VALID state.
             Then, re-run datapatch.
    
             PROD : CATPROC [INVALID]
    
    Installing patches...
    Patch installation complete.  Total patches installed: 1
    
    Validating logfiles...done
    Patch 37642901 apply (pdb PROD): SUCCESS
      logfile: /u01/app/oracle/cfgtoollogs/sqlpatch/37642901/27123174/37642901_apply_REPORT_PROD_2025Apr28_20_36_03.log (no errors)
    SQL Patching tool complete on Mon Apr 28 20:43:14 2025
    
    

    ==> As per above error need to check database components.

    [oracle@report OPatch]$ [oracle@report OPatch]$ sqlplus / as sysdba SQL*Plus: Release 19.0.0.0.0 - Production on Mon Apr 28 20:45:55 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> 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 5 PROD READ WRITE YES SQL> SQL> alter session set container=PROD; Session 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 INVALID 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.

    ==> As per above output CATPROC is in INVALID state so need to run utlrp.sql .

    SQL> SQL> @?/rdbms/admin/utlrp Session altered. TIMESTAMP -------------------------------------------------------------------------------- COMP_TIMESTAMP UTLRP_BGN 2025-04-28 20:49:15 DOC> The following PL/SQL block invokes UTL_RECOMP to recompile invalid DOC> objects in the database. Recompilation time is proportional to the DOC> number of invalid objects in the database, so this command may take DOC> a long time to execute on a database with a large number of invalid DOC> objects. DOC> DOC> Use the following queries to track recompilation progress: DOC> DOC> 1. Query returning the number of invalid objects remaining. This DOC> number should decrease with time. DOC> SELECT COUNT(*) FROM obj$ WHERE status IN (4, 5, 6); DOC> DOC> 2. Query returning the number of objects compiled so far. This number DOC> should increase with time. DOC> SELECT COUNT(*) FROM UTL_RECOMP_COMPILED; DOC> DOC> This script automatically chooses serial or parallel recompilation DOC> based on the number of CPUs available (parameter cpu_count) multiplied DOC> by the number of threads per CPU (parameter parallel_threads_per_cpu). DOC> On RAC, this number is added across all RAC nodes. DOC> DOC> UTL_RECOMP uses DBMS_SCHEDULER to create jobs for parallel DOC> recompilation. Jobs are created without instance affinity so that they DOC> can migrate across RAC nodes. Use the following queries to verify DOC> whether UTL_RECOMP jobs are being created and run correctly: DOC> DOC> 1. Query showing jobs created by UTL_RECOMP DOC> SELECT job_name FROM dba_scheduler_jobs DOC> WHERE job_name like 'UTL_RECOMP_SLAVE_%'; DOC> DOC> 2. Query showing UTL_RECOMP jobs that are running DOC> SELECT job_name FROM dba_scheduler_running_jobs DOC> WHERE job_name like 'UTL_RECOMP_SLAVE_%'; DOC># PL/SQL procedure successfully completed. TIMESTAMP -------------------------------------------------------------------------------- COMP_TIMESTAMP UTLRP_END 2025-04-28 20:49:42 DOC> The following query reports the number of invalid objects. DOC> DOC> If the number is higher than expected, please examine the error DOC> messages reported with each object (using SHOW ERRORS) to see if they DOC> point to system misconfiguration or resource constraints that must be DOC> fixed before attempting to recompile these objects. DOC># OBJECTS WITH ERRORS ------------------- 0 DOC> The following query reports the number of exceptions caught during DOC> recompilation. If this number is non-zero, please query the error DOC> messages in the table UTL_RECOMP_ERRORS to see if any of these errors DOC> are due to misconfiguration or resource constraints that must be DOC> fixed before objects can compile successfully. DOC> Note: Typical compilation errors (due to coding errors) are not DOC> logged into this table: they go into DBA_ERRORS instead. DOC># ERRORS DURING RECOMPILATION --------------------------- 0 Function created. PL/SQL procedure successfully completed. Function dropped. PL/SQL procedure successfully completed. 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> SQL> exit Disconnected from Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production Version 19.27.0.0.0

    ==> As per above output CATPROC is now in the VALID state so run the datapatch again.

    [oracle@report OPatch]$ [oracle@report OPatch]$ ./datapatch -verbose SQL Patching tool version 19.27.0.0.0 Production on Mon Apr 28 20:50:23 2025 Copyright (c) 2012, 2025, Oracle. All rights reserved. Log file for this invocation: /u01/app/oracle/cfgtoollogs/sqlpatch/sqlpatch_17077_2025_04_28_20_50_23/sqlpatch_invocation.log Connecting to database...OK Gathering database info...done Note: Datapatch will only apply or rollback SQL fixes for PDBs that are in an open state, no patches will be applied to closed PDBs. Please refer to Note: Datapatch: Database 12c Post Patch SQL Automation (Doc ID 1585822.1) 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 PDB CDB$ROOT: Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 27-APR-25 11.51.35.558320 AM PDB MISD: Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 27-APR-25 11.58.48.003402 AM PDB MISN: Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 27-APR-25 03.12.59.773550 PM PDB PDB$SEED: Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 27-APR-25 11.58.58.243642 AM PDB PROD: Applied 19.27.0.0.0 Release_Update 250406131139 successfully on 28-APR-25 08.41.56.203836 PM Adding patches to installation queue and performing prereq checks...done Installation queue: For the following PDBs: CDB$ROOT PDB$SEED MISD MISN PROD No interim patches need to be rolled back No release update patches need to be installed No interim patches need to be applied SQL Patching tool complete on Mon Apr 28 20:53:40 2025 [oracle@report OPatch]$
    8. Now take restart of the PDB PROD and check the status.
    
    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
             5 PROD                           READ WRITE YES
    SQL>
    SQL> alter pluggable database PROD close immediate;
    
    Pluggable database altered.
    
    SQL> alter pluggable database PROD open;
    
    
    Pluggable database altered.
    
    SQL> 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
             5 PROD                           READ WRITE NO
    SQL>
    SQL> select name,cause,type,message,status from PDB_PLUG_IN_VIOLATIONS where name='PROD';
    
    NAME                 CAUSE                          TYPE      MESSAGE                                                                STATUS
    -------------------- ------------------------------ --------- ---------------------------------------------------------------------- ---------
    PROD                 Non-CDB to PDB                 ERROR     PDB plugged in is a non-CDB, requires noncdb_to_pdb.sql be run.        RESOLVED
    PROD                 SQL Patch                      ERROR     '19.27.0.0.0 Release_Update 2504061311' is installed in the CDB but '1 RESOLVED
                                                                  9.24.0.0.0 Release_Update 2406272351' is installed in the PDB
    
    
    8. Now do the post check.
    
    SQL> show pdbs
    
        CON_ID CON_NAME                       OPEN MODE  RESTRICTED
    ---------- ------------------------------ ---------- ----------
             2 PDB$SEED                       READ ONLY  NO
             3 MISD                           READ WRITE NO
             4 MISN                           READ WRITE NO
             5 PROD                           READ WRITE NO
    SQL> select BANNER_FULL from v$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=PROD;
    
    Session 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@prod
    
    SQL*Plus: Release 19.0.0.0.0 - Production on Sun Apr 28 21:13:31 2025
    Version 19.27.0.0.0
    
    Copyright (c) 1982, 2024, Oracle.  All rights reserved.
    
    Enter password:
    Last Successful login time: Sun Apr 28 2025 19:45:15 +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.


    Thanks for visiting!!

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