Eventually, all databases will be container based. The first PDB in container is FREE, additional PDB is license option.
Startup / Shutdown Summary:
Starting CDB (container database) will NOT OPEN PDB (pluggable database)
Use SHOW CON_NAME to know where you are at, i.e. CDB or PDB
Use ALL to have OPEN/CLOSE all PDB, i.e. ALTER PLUGGABLE DATABASE ALL OPEN;
Use ALTER SESSION to switch to PDB, i.e. alter session set container=PDB01;
Demo:
> sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Thu Aug 1 05:41:27 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, Automatic Storage Management, OLAP, Advanced Analytics and Real Application Testing options
SQL> SHOW CON_NAME
CON_NAME ------------------------------ CDB$ROOT
SQL> SHOW PDBS
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB01 READ WRITE NO
SQL> shutdown immediate;
Database closed. Database dismounted. ORACLE instance shut down.
SQL> SHOW CON_NAME
ERROR: ORA-01034: ORACLE not available Process ID: 0 Session ID: 0 Serial number: 0 SP2-1545: This feature requires Database availability.
SQL> startup;
ORACLE instance started. Total System Global Area 3206836224 bytes Fixed Size 2293496 bytes Variable Size 738197768 bytes Database Buffers 2449473536 bytes Redo Buffers 16871424 bytes Database mounted. Database opened.
SQL> SHOW CON_NAME
CON_NAME ------------------------------ CDB$ROOT
SQL> SHOW PDBS
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB01 MOUNTED
SQL> ALTER PLUGGABLE DATABASE PDB01 OPEN;
Pluggable database altered.
SQL> SHOW PDBS
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB01 READ WRITE NO
SQL> ALTER PLUGGABLE DATABASE ALL CLOSE;
Pluggable database altered.
SQL> SHOW PDBS
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 PDB01 MOUNTED
SQL>
SQL> ALTER PLUGGABLE DATABASE ALL OPEN;
Pluggable database altered.
SQL> alter session set container=PDB01;
Session altered.
SQL> SHOW CON_NAME
CON_NAME ------------------------------ PDB01 SQL>
References:
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