Oracle 12c nocdb 转换成cdb

环境说明：

OS:Oracle Linux Server release 6.3

DB:Oracle 12.2.0.1.0

DBName:dapuchai

场景：

Oracle 11.2.0.4.0 升级到Oracle 12.2.0.1.0 ，默认是no-cdb 模式，升级后根据需要将no-cdb 转换成cdb 里，即将之前的11.2.0.4.0 数据完全迁移到PDB(Creating a PDB Using a Non-CDB) ；

实施方案：

一： 连接non-CDB(dapuchai) ，生成XML 格式数据库描述文件

二：DBCA 新建cdb 数据库(cjcdb)

三： Plug in the non-CDB (cjcpdb)

四：执行 noncdb_to_pdb.sql

五：验证数据

参考： https://docs.oracle.com/database/121/ADMIN/cdb_plug.htm#ADMIN13598

一：连接 non-CDB(dapuchai) ，生成 XML 格式数据库描述文件

Connect to the non-CDB, and run the DBMS_PDB.DESCRIBE procedure to construct an XML file that describes the non-CDB.

[root@cjc ~]# ps -ef|grep pmon

oracle 2677 1 0 22:35 ? 00:00:00 ora_pmon_dapuchai

root 3057 2634 0 22:37 pts/1 00:00:00 grep pmon

SQL> select name,cdb from v$database;

NAME CDB

--------- ---

DAPUCHAI NO

SQL> show pdbs

SQL> show con_id

CON_ID

------------------------------

0

SQL> shutdown immediate

---只读方式打开dapuchai数据库

SQL> startup open read only;

SQL> select name,open_mode,cdb from v$database;

NAME OPEN_MODE CDB

--------- -------------------- ---

DAPUCHAI READ ONLY NO

---生成xml 格式的数据库描述文件

SQL> BEGIN

DBMS_PDB.DESCRIBE(pdb_descr_file => '/home/oracle/20200113.xml');

END; 2 3

4 /

PL/SQL procedure successfully completed.

二： DBCA 新建 cdb 数据库 (cjcdb)

[oracle@cjc ~]$ dbca

三： Plug in the non-CDB (cjcpdb)

[oracle@cjc oracle12]$ ps -ef|grep pmon

oracle 3106 1 0 22:38 ? 00:00:00 ora_pmon_dapuchai

oracle 4326 1 0 23:05 ? 00:00:00 ora_pmon_cjcdb

oracle 5651 3249 0 23:16 pts/1 00:00:00 grep pmon

[oracle@cjc ~]$ export ORACLE_SID=cjcdb

[oracle@cjc ~]$ sqlplus / as sysdba

SQL*Plus: Release 12.2.0.1.0 Production on Mon Jan 13 23:18:52 2020

Connected to:

Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production

SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED

---------- ------------------------------ ---------- ----------

2 PDB$SEED READ ONLY NO

SQL> select name,open_mode,cdb from v$database;

NAME OPEN_MODE CDB

--------- -------------------- ---

CJCDB READ WRITE YES

[oracle@cjc oradata]$ mkdir cjcpdb

[oracle@cjc oradata]$ cd cjcpdb/

[oracle@cjc cjcpdb]$ pwd

/u01/app/oracle12/oradata/cjcpdb

SQL> select name from v$dbfile;

NAME

--------------------------------------------------------------------------------

/u01/app/oracle12/oradata/cjcdb/users01.dbf

/u01/app/oracle12/oradata/cjcdb/undotbs01.dbf

/u01/app/oracle12/oradata/cjcdb/system01.dbf

/u01/app/oracle12/oradata/cjcdb/sysaux01.dbf

/u01/app/oracle12/oradata/cjcdb/pdbseed/system01.dbf

/u01/app/oracle12/oradata/cjcdb/pdbseed/sysaux01.dbf

/u01/app/oracle12/oradata/cjcdb/pdbseed/undotbs01.dbf

7 rows selected.

SQL> create pluggable database cjcpdb using '/home/oracle/20200113.xml' copy FILE_NAME_CONVERT = ('/u01/app/oracle/oradata/dapuchai/', '/u01/app/oracle12/oradata/cjcpdb/');

Pluggable database created.

---数据文件迁移完成

[oracle@cjc cjcpdb]$ pwd

/u01/app/oracle12/oradata/cjcpdb

[oracle@cjc cjcpdb]$ ll -rth

total 2.5G

-rw-r----- 1 oracle oinstall 58M Jan 13 23:26 temp01.dbf

-rw-r----- 1 oracle oinstall 11M Jan 13 23:26 ogg_temtbs01.dbf

-rw-r----- 1 oracle oinstall 11M Jan 13 23:26 ogg_tbs01.dbf

-rw-r----- 1 oracle oinstall 11M Jan 13 23:26 cjc_tbs01a.dbf

-rw-r----- 1 oracle oinstall 16M Jan 13 23:26 users01.dbf

-rw-r----- 1 oracle oinstall 446M Jan 13 23:26 undotbs01.dbf

-rw-r----- 1 oracle oinstall 1.2G Jan 13 23:26 system01.dbf

-rw-r----- 1 oracle oinstall 881M Jan 13 23:26 sysaux01.dbf

SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED

---------- ------------------------------ ---------- ----------

2 PDB$SEED READ ONLY NO

3 CJCPDB MOUNTED

四：执行 noncdb_to_pdb.sql

虚拟机内存只分配4G ，并且是机械硬盘，脚本执行了1 小时；

切换到PDB 并执行脚本

SQL> alter session set container=cjcpdb;

SQL> @?/rdbms/admin/noncdb_to_pdb.sql

......

---启动pdb

SQL> show pdbs

CON_ID CON_NAME OPEN MODE RESTRICTED

---------- ------------------------------ ---------- ----------

3 CJCPDB MOUNTED

SQL> alter pluggable database cjcpdb open;

Pluggable database altered.

告警日志查看pdb 启动过程；

五：验证数据

[oracle@cjc ~]$ cd /u01/app/oracle12/product/12.2.0.1/db_1/network/admin/

[oracle@cjc admin]$ vi tnsnames.ora

......

CJCPDB =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = cjc)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = CJCPDB)

)

---修改环境变量，指定cdb 实例

[oracle@cjc ~]$ vi .bash_profile

......

#export ORACLE_SID=dapuchai

export ORACLE_SID=cjcdb

......

[oracle@cjc ~]$ source .bash_profile

---关掉no-cdb

欢迎关注我的微信公众号"IT小Chen"，共同学习，共同成长！！！

Oracle 12c nocdb转换成cdb