2.oracle 12c 创建-访问-关闭-删除PDB
1.创建PDB
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/ora12c/system01.dbf
/u01/app/oracle/oradata/ora12c/pdbseed/system01.dbf
/u01/app/oracle/oradata/ora12c/sysaux01.dbf
/u01/app/oracle/oradata/ora12c/pdbseed/sysaux01.dbf
/u01/app/oracle/oradata/ora12c/undotbs01.dbf
/u01/app/oracle/oradata/ora12c/users01.dbf
/u01/app/oracle/oradata/ora12c/EMP/system01.dbf
/u01/app/oracle/oradata/ora12c/EMP/sysaux01.dbf
/u01/app/oracle/oradata/ora12c/EMP/EMP_users01.dbf
9 rows selected.
SQL> alter system set db_create_file_dest='/u01/app/oracle/oradata/ora12c/dsg';
System altered.
SQL> create pluggable database dsg admin user hxy identified by hxy roles=(connect);
Pluggable database created.
要先设置db_create_file_dest，否则创建PDB的时候报下面的错误：
SQL> create pluggable database dsg admin user hxy identified by hxy roles=(connect);
create pluggable database dsg admin user hxy identified by hxy roles=(connect)
*
ERROR at line 1:
ORA-65016: FILE_NAME_CONVERT must be specified
查看
SQL> select con_id,name,open_mode from v$pdbs;
CON_ID NAME OPEN_MODE
---------- ------------------------------ ----------
2 PDB$SEED READ ONLY
3 EMP READ WRITE
4 DSG MOUNTED
启动DSG
SQL> alter pluggable database dsg open;
Pluggable database altered.
SQL> select con_id,name,open_mode from v$pdbs;
CON_ID NAME OPEN_MODE
---------- ------------------------------ ----------
2 PDB$SEED READ ONLY
3 EMP READ WRITE
4 DSG READ WRITE
2.（1）通过tnsname访问PDB数据库
例如：
首先需要启动监听，最好使用netca配置监听，配置完成后查看其状态为：
[oracle@db12 admin]$ lsnrctl status LSNRCTL for Linux: Version 12.1.0.1.0 - Production on 13-AUG-2014 02:08:16 Copyright (c) 1991, 2013, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=db12)(PORT=1521))) STATUS of the LISTENER ------------------------ Alias LISTENER Version TNSLSNR for Linux: Version 12.1.0.1.0 - Production Start Date 13-AUG-2014 02:02:42 Uptime 0 days 0 hr. 5 min. 34 sec Trace Level off Security ON: Local OS Authentication SNMP OFF Listener Parameter File /u01/app/oracle/product/12.1.0/network/admin/listener.ora Listener Log File /u01/app/oracle/diag/tnslsnr/db12/listener/alert/log.xml Listening Endpoints Summary... (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=db12)(PORT=1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521))) (DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=db12)(PORT=5500))(Security=(my_wallet_directory=/u01/app/oracle/admin/db12/xdb_wallet))(Presentation=HTTP)(Session=RAW)) Services Summary... Service "db12" has 1 instance(s). Instance "db12", status READY, has 1 handler(s) for this service... Service "db12XDB" has 1 instance(s). Instance "db12", status READY, has 1 handler(s) for this service... Service "emp" has 1 instance(s). Instance "db12", status READY, has 1 handler(s) for this service... The command completed successfully
如果使用手动配置监听器，pdb的监听不一定能启动，这点要注意！
查看当前数据库的PDB
SQL> select con_id,name,open_mode from v$pdbs;
CON_ID NAME OPEN_MODE
---------- ------------------------------ ----------
2 PDB$SEED READ ONLY
3 EMP READ WRITE
查看tnsnames.ora
EMP =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = localhost.localdomain)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = EMP)
)
)
访问：
[oracle@localhost ~]$ sqlplus sys/oracle@emp as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Sat Jan 18 14:26:04 2014
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 and Real Application Testing options
SQL> show con_name con_id
CON_NAME
------------------------------
EMP
CON_ID
------------------------------
3
（2）使用EZCONNECT方式连接到数据库
SQL> conn sys/oracle@//localhost/dsg as sysdba
Connected.
SQL> show con_name con_id
CON_NAME
------------------------------
DSG
CON_ID
------------------------------
4 查看
SQL> select name from v$datafile;
NAME
------------------------------------------------------------------------------------------------------------------------
/u01/app/oracle/oradata/ora12c/undotbs01.dbf
/u01/app/oracle/oradata/ora12c/dsg/ORA12C/F039E431F9CE7170E0430100007F6A0D/datafile/o1_mf_system_9fn895qv_.dbf
/u01/app/oracle/oradata/ora12c/dsg/ORA12C/F039E431F9CE7170E0430100007F6A0D/datafile/o1_mf_sysaux_9fn89mpk_.dbf
有两个单独的数据文件system、sysaux和共享的undo表空间共享的全局数据文件
SQL> select name from v$tempfile;
NAME
------------------------------------------------------------------------------------------------------------------------
/u01/app/oracle/oradata/ora12c/dsg/ORA12C/F039E431F9CE7170E0430100007F6A0D/datafile/o1_mf_temp_9fn8bxy4_.dbf
有独立的临时文件
SQL> select name from v$controlfile;
NAME
------------------------------------------------------------------------------------------------------------------------
/u01/app/oracle/oradata/ora12c/control01.ctl
/u01/app/oracle/fast_recovery_area/ora12c/control02.ctl
控制文件是共享的
（3）在DBA等高级权限的用户下，通过alter命令进行会话级别的容器切换，访问不同容器下的对象
SQL> conn / as sysdba
Connected.
SQL> alter session set container=dsg;
Session altered.
SQL> show con_id con_name
CON_ID
------------------------------
4
CON_NAME
------------------------------
DSG
SQL> alter session set container=emp;
Session altered.
SQL> show con_id con_name
CON_ID
------------------------------
3
CON_NAME
------------------------------
EMP
五，关闭PDB
（1）切换到PDB
SQL> alter session set container=dsg;
Session altered.
SQL> show con_id con_name
CON_ID
------------------------------
4
CON_NAME
------------------------------
DSG
SQL> shutdown immediate
Pluggable Database closed.
（2）在具有sys权限的用户执行
SQL> alter pluggable database emp close;
Pluggable database altered.
六，删除PDB
SQL> select con_id,name,open_mode from v$pdbs;
CON_ID NAME OPEN_MODE
---------- ------------------------------ ----------
2 PDB$SEED READ ONLY
3 EMP MOUNTED
4 DSG READ WRITE
SQL> drop pluggable database dsg including datafiles;
drop pluggable database dsg including datafiles
*
ERROR at line 1:
ORA-65025: Pluggable database DSG is not closed on all instances.
必须让PDB处于关闭状态才能删除PDB
SQL> alter pluggable database dsg close;
Pluggable database altered.
SQL> drop pluggable database dsg including datafiles;
Pluggable database dropped.
查看产生的alert日志：
把相应的数据文件全部删除
在OS中查看：
笔记
