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：

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：

[[email protected] ~]$ sqlplus sys/[email protected] 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/[email protected]//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：

2.oracle 12c 创建-访问-关闭-删除PDB,布布扣,bubuko.com

时间： 2024-08-27 21:22:03

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