Oracle 12c nocdb轉換成cdb

Oracle 12c nocdb 轉換成cdb

 

環境說明：

OS:Oracle Linux Server release 6.3

DB:Oracle 12.2.0.1.0

DBName:dapuchai

場景：

Oracle 11.2.0.4.0 升級到Oracle 12.2.0.1.0 ，預設是no-cdb 模式，升級後根據需要將no-cdb 轉換成cdb 裡，即將之前的11.2.0.4.0 資料完全遷移到PDB(Creating a PDB Using a Non-CDB) ；

實施方案：

一： 連線non-CDB(dapuchai) ，生成XML 格式資料庫描述檔案

二：DBCA 新建cdb 資料庫(cjcdb)

三： Plug in the non-CDB (cjcpdb)

四：執行 noncdb_to_pdb.sql

五：驗證資料

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

一： 連線 non-CDB(dapuchai) ，生成 XML 格式資料庫描述檔案

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

---只讀方式開啟dapuchai資料庫

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 格式的資料庫描述檔案

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 資料庫 (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

Copyright (c) 1982, 2016, Oracle.  All rights reserved.

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.

---資料檔案遷移完成

[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：執行 noncdb_to_pdb.sql

虛擬機器記憶體只分配4G ，並且是機械硬碟，指令碼執行了1 小時；

切換到PDB 並執行指令碼

SQL> alter session set container=cjcpdb;

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

......

......

......

---啟動pdb

SQL> show pdbs

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED

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

         3 CJCPDB                         MOUNTED

SQL> alter pluggable database cjcpdb open;

Pluggable database altered.

告警日誌檢視pdb 啟動過程；

五：驗證資料

[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)

    )

  )

---修改環境變數，指定cdb 例項

[oracle@cjc ~]$ vi .bash_profile

......

#export ORACLE_SID=dapuchai

export ORACLE_SID=cjcdb

......

[oracle@cjc ~]$ source .bash_profile

---關掉no-cdb

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