Pluggable Database Tutorial Part 1 (12c)

Posted on by Osama Mustafa in Database

[oracle@test12c Desktop]$ sqlplus / as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Wed Jul 3 19:05:10 2013
Copyright (c) 1982, 2013, Oracle.  All rights reserved.

Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 – 64bit Production
With the Partitioning, OLAP, Advanced Analytics, Real Application Testing
and Unified Auditing options

SQL> show con_name

CON_NAME
——————-
CDB$ROOT

Where 
CON_NAME : Displays the name of the Container to which you are connected when connected to a Consolidated Database. For non-consolidated database, it will return “Non Consolidated”.

SQL> show con_id

CON_ID
————
1

Where 
CON_ID : Displays the id of the Container to which you are connected when connected to a Consolidated Database. If issued when connected to a non-Consolidated Database, this command returns 0.

Now I want to check how Name for my my pluggable database , while installation i chosen five container with prefix db_

SQL> select name, con_id from v$active_services order by 1;

NAME     CON_ID
—————————————————————- ———-
SYS$BACKGROUND  1
SYS$USERS  1
db12c  1
db12cXDB  1
db_1  3
db_2  4
db_3  5
db_4  6
db_5  7
9 rows selected.

 Listener will look like the below :

Example how to connect Container , In my case i didn’t create service in tnsnames.ora i am using easy connect :

SQL> conn sys/sys@localhost:1521/db_1 as sysdba
Connected.

SQL> show con_name

CON_NAME
—————-
DB_1

SQL> show con_id

CON_ID
————
3

Work On Pluggable Database  :

After create Container and enable pluggable database , we need to add new one since container empty.
Under /u01/app/oracle/oradata ,create new folder 

[oracle@test12c db12c]$ mkdir test
[oracle@test12c db12c]$ chmod -R 775 test

Sqlplus / as sysdba

SQL > create pluggable database TEST admin user admin identified by admin
 file_name_convert= (‘/u01/app/oracle/oradata/db12c/pdbseed/’,’/u01/app/oracle/oradata/db12c/test/’);

Pluggable database created.

SQL> select pdb_name, status from cdb_pdbs;

PDB_NAME                    Status
———————–    ————
PDB$SEED                      NORMAL
TEST                                NEW

SQL> select name, open_mode from v$pdbs;

NAME       OPEN_MODE
—————————— ———-
PDB$SEED       READ ONLY
TEST                             MOUNTED

SQL> select name, con_id from v$active_services order by 1;

NAME     CON_ID
—————————————————————- ———-
SYS$BACKGROUND   1
SYS$USERS  1
db12c  1
db12cXDB  1
TEST                                                                         3

Now Con_id=3 , Most of Oracle Data Dictionary contains new_column called con_id  , to check datafile related to new pluaggable database :

SQL> select name from v$datafile where con_id=3 ;

NAME
——————————————————————————–
/u01/app/oracle/oradata/db12c/gls/system01.dbf
/u01/app/oracle/oradata/db12c/gls/sysaux01.dbf

Manage Oracle Container and Pluggable Database :
If you need to shutdown container, it will not be different as before :

SQL> show con_name
CON_NAME
——————————
CDB$ROOT

SQL> shutdown ;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>
SQL> startup ;
ORACLE instance started.
Total System Global Area 1252663296 bytes
Fixed Size    2287864 bytes
Variable Size  788530952 bytes
Database Buffers  452984832 bytes
Redo Buffers    8859648 bytes
Database mounted.
Database opened.

Check status for PDB :

SQL>select name, open_mode from v$pdbs;

NAME       OPEN_MODE
—————————— ———-
PDB$SEED       READ ONLY
TEST                  MOUNTED

If you the above Status for Test Database you will see it as mounted state which mean we cannot create anything yet on database, Let’s Open it 
SQL> alter pluggable database TEST open ;
Pluggable database altered.

SQL> select name,open_mode from v$pdbs ;NAME       OPEN_MODE
—————————— ———-
PDB$SEED       READ ONLY
TEST                READ WRITE

The Same for close Option 

SQL> alter pluggable database TEST close immediate ;
Pluggable database altered.

SQL> select name,open_mode from v$pdbs ;NAME       OPEN_MODE
—————————— ———-
PDB$SEED       READ ONLY
TEST                               MOUNTED

Now you can open/close all pluggable database :

SQL > Alter pluggable database  all Open;
SQL > Alter pluggable database  all close ;

SQL> select tablespace_name, con_id from cdb_tablespaces where con_id=3 ;

TABLESPACE_NAME   CON_ID
—————————— ———-
SYSTEM 3
SYSAUX 3
TEMP 3

to get data file 

SQL> select file_name, con_id from cdb_data_files where con_id=3 ;NAME
——————————————————————————–
/u01/app/oracle/oradata/db12c/gls/system01.dbf
/u01/app/oracle/oradata/db12c/gls/sysaux01.dbf

SQL> select file_name, con_id from cdb_temp_files where con_id=3;

FILE_NAME                  CON_ID
——————————————
/u01/app/oracle/oradata/db12c/gls/pdbseed_temp01.dbf       3

 If you do the below query to create tablespace, it will not be created under TEST database, therefore it will be created on root :

SQL > create tablespace cdata datafile ‘/u01/app/oracle/oradata/db12c/gls/test.dbf’ SIZE 30M;

 SQL> select tablespace_name, con_id from cdb_tablespaces order by con_id;TABLESPACE_NAME   CON_ID
—————————— ———-
SYSTEM 1
CDATA 1
SYSAUX 1
TEMP 1
UNDOTBS1 1
USERS 1
SYSTEM 2
TEMP 2
SYSAUX 2
SYSTEM 3
SYSAUX 3
TEMP 3
12 rows selected.

Same for temp tablespace :

SQL> create temporary tablespace root_temp tempfile ‘/u01/app/oracle/oradata/db12c/temp_01.dbf’ SIZE 30M;

 If you need to create Tablespace in pluggable database follow the below , you have to options

  • connect to pluggable database in our case test using tnsnames.ora or easy connect
    • connect sys/sys@localhost:1521/test
  • alter session command line 
    •  alter session set container=

SQL> alter session set container=TEST;Session altered.

SQL> create tablespace pdb_test datafile ‘/u01/app/oracle/oradata/db12c/TEST/test_pdb.dbf’ SIZE 20M;
Tablespace created.

SQL> select tablespace_name, con_id from cdb_tablespaces order by con_id;TABLESPACE_NAME   CON_ID
—————————— ———-
SYSTEM 3
SYSAUX 3
TEMP 3
PDB_TEST 3

Same for temporary tablespace, next post i will provide another manage for pluggable database.
Also I Upload this tutorial On SlideShare Here
Thank you 
Osama mustafa

Reference :
1- oracle Documentation Here
2- Oracle Documentation Here

Published by Osama Mustafa

Osama considered as one of the leaders in Cloud technology, DevOps and database in the Middle-East. I have more than ten years of experience within the industry. moreover, certfied 4x AWS , 4x Azure and 6x OCI, have also obtained database certifications for multiple providers. In addition to having experience with Oracle database and Oracle products, such as middle-ware, OID, OAM and OIM, I have gained substantial knowledge with different databases. Currently, I am architecting and implementing Cloud and DevOps. On top of that, I'm providing solutions for companies that allow them to implement the solutions and to follow the best practices.

12 thoughts on “Pluggable Database Tutorial Part 1 (12c)”

  2. If you install software only you need to configure listener using netca command , but if you choose to install software + Database no need to do this and it will automatically register in both way,

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  3. Dear!Send me please connect string for WebTier service. Error string: Exemple(PlsqlDatabaseConnectString 192.168.1.1:1521:DB12/testDb1)What is problem?Best regardsDmityhttp://docs.oracle.com/middleware/1212/webtier/HSADM/directives.htm#CIHGJGEA

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