标签：oracle12c cdb pdb cdb#root pdb#seed
Oracle12c has a new feature and definition of CDB and PDB. If you first use 12c you will get confused like me. So that is necessary to know some basic definitions before you start. Oracle‘s official document is always the best material.
What is CBD and PDB and why introduce them?
[oracle@ol65 ~]$ <strong>sqlplus /nolog</strong> SQL*Plus: Release 12.1.0.2.0 Production on Mon Oct 27 23:07:56 2014 Copyright (c) 1982, 2014, Oracle. All rights reserved. SQL> conn sys@orcl as sysdba Enter password: Connected. SQL> sho con_name CON_NAME ------------------------------ CDB$ROOT SQL>** sho con_name - show current container name. Root container is always called CDB#ROOT.
SQL> sho pdbs
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDBORCL MOUNTED
SQL>
SQL> alter pluggable database PDBORCL open;
Pluggable database altered.
SQL> sho pdbs
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDBORCL READ WRITE NO
SQL>
SQL> sho con_name CON_NAME ------------------------------ CDB$ROOT SQL> alter session set container=PDBORCL; Session altered. SQL> sho con_name CON_NAME ------------------------------ PDBORCL SQL>Now you login a PDB. Now you can create a new user as you operate a Oracle DB before 12c. This user is not common user. It‘s a user for this PDB. You also can understand PDB as a general DB of the version before 12c.
SQL> conn sys as sysdba Enter password: Connected. SQL> alter pluggable database PDBORCL close immediate; Pluggable database altered. SQL>
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl.localdomain)
)
)
<strong>PDBORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = pdborcl.localdomain)
)
)</strong>
[oracle@ol65 admin]$ sqlplus sys@pdborcl as sysdba SQL*Plus: Release 12.1.0.2.0 Production on Tue Oct 28 00:08:52 2014 Copyright (c) 1982, 2014, Oracle. All rights reserved. Enter password: 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>And the most importance is that now you are able to remotely connect this PDB!
标签：oracle12c cdb pdb cdb#root pdb#seed
原文地址：http://blog.csdn.net/neuandustbneo/article/details/40518243
