This article describes the process of configure a TDE on CDB and unplugging PDB1 from the CDB1 instance and plugging into the CDB2 instance on the same machine with a new name of PDB2.

1 – Configure TDE Source – CDB (cdb1)

A) Create directory

[root@vm1 ~]# mkdir -p /etc/ORACLE/WALLETS/cdb1
[root@vm1 ~]# mkdir -p /etc/ORACLE/WALLETS/cdb2
[root@vm1 ~]# chown -R oracle:oinstall /etc/ORACLE
[root@vm1 ~]# chmod -R 755 /etc/ORACLE

B) Edit sqlnet.ora and configure the Wallet

ENCRYPTION_WALLET_LOCATION=
(SOURCE=
(METHOD=FILE)
(METHOD_DATA=
(DIRECTORY=/etc/ORACLE/WALLETS/$ORACLE_SID/)))

C) Configure Database – cdb1

[oracle@vm1 ~]$ . oraenv <<< cdb1
ORACLE_SID = [db01] ? The Oracle base remains unchanged with value /u01/app/oracle
[oracle@vm1 ~]$ sqlplus

SQL*Plus: Release 12.1.0.2.0 Production on Tue Sep 3 20:58:03 2019

Copyright (c) 1982, 2014, Oracle. All rights reserved.

Enter user-name: / as sysdba

Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options

SQL>
SQL>
SQL>
SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB1 READ WRITE NO
4 PDB2 READ WRITE NO


SQL> ADMINISTER KEY MANAGEMENT CREATE KEYSTORE '/etc/ORACLE/WALLETS/cdb1' IDENTIFIED BY oracle;

keystore altered.

SQL> ADMINISTER KEY MANAGEMENT SET KEYSTORE OPEN IDENTIFIED BY oracle container=all;

keystore altered.


SQL> ADMINISTER KEY MANAGEMENT SET KEY IDENTIFIED BY oracle WITH BACKUP USING 'emp_key_backup'

keystore altered.


SQL> alter session set container=pdb1;

Session altered.

SQL> ADMINISTER KEY MANAGEMENT SET KEY IDENTIFIED BY oracle WITH BACKUP USING 'emp_key_backup';

keystore altered.

SQL> set linesize 500
SQL> select * from v$encryption_wallet;

WRL_TYPE WRL_PARAMETER STATUS WALLET_TYPE WALLET_OR FULLY_BAC CON_ID
-------------------- -------------------------------------------------- ------------------------------ -------------------- --------- --------- ----------
FILE /etc/ORACLE/WALLETS/cdb1/ OPEN PASSWORD SINGLE NO 0


SQL> create tablespace TESTE
datafile '/u01/app/oracle/oradata/cdb1/pdb1/teste.dbf' size 10m
encryption using 'AES256'
default storage (encrypt);

Tablespace created.

D) Export Key from Source – PDB(pdb1)

SQL>ADMINISTER KEY MANAGEMENT EXPORT ENCRYPTION KEYS WITH SECRET "oracle" TO '/home/oracle/export.p12' IDENTIFIED BY oracle;

keystore altered.

SQL> !
[oracle@vm1 ~]$ ls -ltr export.p12
-rw-r--r--. 1 oracle oinstall 2612 Sep 3 21:08 export.p12
[oracle@vm1 ~]$ exit

E) Unplug and DROP PDB(pdb1)

SQL> alter pluggable database close immediate;

Pluggable database altered.

SQL> conn / as sysdba
Connected.

SQL> alter pluggable database pdb1 unplug into '/home/oracle/pdb1.xml';

Pluggable database altered.

SQL> drop pluggable database pdb1 keep datafiles;

Pluggable database dropped.

SQL> exit
Disconnected from Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options

2 – Configure TDE Destination CDB(cdb2)

[oracle@vm1 ~]$ . oraenv <<< cdb2
ORACLE_SID = [cdb1] ? The Oracle base remains unchanged with value /u01/app/oracle
[oracle@vm1 ~]$ ls /etc/ORACLE/WALLETS/
cdb1 cdb2
[oracle@vm1 ~]$ sqlplus

SQL*Plus: Release 12.1.0.2.0 Production on Tue Sep 3 21:13:12 2019

Copyright (c) 1982, 2014, Oracle. All rights reserved.

Enter user-name: / as sysdba
Connected to an idle instance.

SQL> startup
ORACLE instance started.

Total System Global Area 1241513984 bytes
Fixed Size 2923872 bytes
Variable Size 452985504 bytes
Database Buffers 771751936 bytes
Redo Buffers 13852672 bytes
Database mounted.
Database opened.
SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB1 MOUNTED
SQL>
SQL> ADMINISTER KEY MANAGEMENT CREATE KEYSTORE '/etc/ORACLE/WALLETS/cdb2' IDENTIFIED BY oracle;

keystore altered.

SQL> ADMINISTER KEY MANAGEMENT SET KEYSTORE OPEN IDENTIFIED BY oracle;

keystore altered.

SQL> ADMINISTER KEY MANAGEMENT SET KEY IDENTIFIED BY oracle WITH BACKUP USING 'emp_key_backup';

keystore altered.

SQL>
SQL>

F) PLUG PDB(pdb2) using Unplugged pdb1

SQL> create pluggable database pdb2 as clone using '/home/oracle/pdb1.xml'
2 file_name_convert=('/u01/app/oracle/oradata/cdb1/pdb1/','/u01/app/oracle/oradata/cdb2/pdb2/');

Pluggable database created.

SQL> alter pluggable database pdb2 open;

Warning: PDB altered with errors.

G) IMPORT KEY from Source PDB(pdb1) to Destination PDB(pdb2)

SQL> alter session set container=pdb2;

Session altered.

SQL> ADMINISTER KEY MANAGEMENT SET KEYSTORE OPEN IDENTIFIED BY oracle;

keystore altered.

SQL> ADMINISTER KEY MANAGEMENT IMPORT ENCRYPTION KEYS WITH SECRET "oracle" FROM '/home/oracle/export.p12' IDENTIFIED BY oracle WITH BACKUP;

keystore altered.

SQL> shut immediate;
Pluggable Database closed.
SQL> startup
Pluggable Database opened.

H) Validate PDB is fully integrated with CDB2

SQL> conn / as sysdba
Connected.

SQL> select message,status from pdb_plug_in_violations where status <> 'RESOLVED';
SQL> /

no rows selected

SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB1 MOUNTED
4 PDB2 READ WRITE NO
SQL>

I hope this helps you!!!

This article was written by Andre Ontalba e Rodrigo Mufalani

Disclaimer: “The postings on this site are my own and don’t necessarily represent may actual employer positions, strategies or opinions. The information here was edited  to be useful for general purpose, specific data and identifications was removed to allow reach generic audience and to be useful.”