Oracle 19c 创建和迁移PDB的几种方式

1. 从PDB seed 创建 PDB

从上图中，我们可以看到pdb$seed的目录是pdbseed. 

SQL> CREATE PLUGGABLE DATABASE pdb3   ADMIN USER pdb3admin IDENTIFIED BY password FILE_NAME_CONVERT=('/u01/app/oracle/oradata/ORCL/pdbseed/','/u01/app/oracle/oradata/ORCL/pdb3/');-- PDB3 如果和PDB seed 放在同一个目录下，可以直接用 FILE_NAME_CONVERT=('pdbseed','pdb3')代替

Pluggable database created.

SQL> show pdbs;

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 PDB1                           READ WRITE NO
         4 PDB3                           MOUNTED
         5 PDB2                           MOUNTED
SQL> alter  pluggable database pdb3 open;

Pluggable database altered.

2.从其他本地PDB（LOCAL PDB)创建PDB

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 PDB1                           READ WRITE NO
         4 PDB3                           MOUNTED
         5 PDB2                           MOUNTED
SQL> create pluggable database pdb4 from pdb3 file_name_convert=('pdb3','pdb4');
create pluggable database pdb4 from pdb3 file_name_convert=('pdb3','pdb4')
*
ERROR at line 1:
ORA-65036: pluggable database PDB3 not open in required mode

SQL> alter pluggable database pdb3 open;

Pluggable database altered.

SQL> create pluggable database pdb4 from pdb3 file_name_convert=('pdb3','pdb4');--用PDB3创建PDB4

Pluggable database created.

SQL> show pdbs;

    CON_ID CON_NAME                       OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
         2 PDB$SEED                       READ ONLY  NO
         3 PDB1                           READ WRITE NO
         4 PDB3                           READ WRITE NO
         5 PDB2                           MOUNTED
         7 PDB4                           MOUNTED
SQL> alter  pluggable database pdb4 open;

3.从远程PDB创建新的PDB(target PDB is  pdb22, source  PDB is  pdb1)

  In the  source database(PDB1) execute the following sql

QL> alter session set container=pdb1;

Session altered.

SQL> show con_name;

CON_NAME
------------------------------
PDB1

SQL> grant create pluggable database  to pdbadmin;--without this permission grant, you give get  the  following error

ERROR at line 1:
ORA-17628: Oracle error 1031 returned by remote Oracle server
ORA-01031: insufficient privileges

 

Grant succeeded.

In the target database execute the following SQL

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 PDB11              READ WRITE NO

SQL> create database link pdb1_lnk connect to pdbadmin identified by password using  'pdb1';

Database link created.

SQL> create pluggable database  pdb22 from pdb1@pdb1_lnk;

Pluggable database created.

SQL> 
 

4. UNPLUG PDB from source database and PLUG database to target database.

Doing the following operation from source database.

SQL> select name from v$database;

NAME
---------
ORCL

SQL> show pdbs;

    CON_ID CON_NAME              OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
     2 PDB$SEED              READ ONLY  NO
     3 PDB1               READ WRITE NO
     4 PDB3               MOUNTED
     5 PDB2               MOUNTED
     7 PDB4               MOUNTED

SQL> alter pluggable database pdb3
  2  open;

Pluggable database altered.

SQL> show pdbs;

    CON_ID CON_NAME              OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
     2 PDB$SEED              READ ONLY  NO
     3 PDB1               READ WRITE NO
     4 PDB3               READ WRITE NO
     5 PDB2               MOUNTED
     7 PDB4               MOUNTED
SQL> alter pluggable database pdb2 open;

Pluggable database altered.

SQL> alter pluggable database pdb4 open;

Pluggable database altered.

SQL> 
SQL> 
SQL> show pdbs;

    CON_ID CON_NAME              OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
     2 PDB$SEED              READ ONLY  NO
     3 PDB1               READ WRITE NO
     4 PDB3               READ WRITE NO
     5 PDB2               READ WRITE NO
     7 PDB4               READ WRITE NO
SQL> show con_name;

CON_NAME
------------------------------
CDB$ROOT
SQL> select  name from v$database;

NAME
---------
ORCL

SQL> alter pluggable database pdb4 unplug into '/u01/app/oracle/oradata/pdb4.xml';
alter pluggable database pdb4 unplug into '/u01/app/oracle/oradata/pdb4.xml'
*
ERROR at line 1:
ORA-65025: Pluggable database PDB4 is not closed on all instances.

SQL> alter pluggable database  pdb4 close;

Pluggable database altered.

SQL> alter pluggable database pdb4 unplug into '/u01/app/oracle/oradata/pdb4.xml'; --the xml will used to  create pdb on the target datatabase

Pluggable database altered.

SQL> show pdbs;

    CON_ID CON_NAME              OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
     2 PDB$SEED              READ ONLY  NO
     3 PDB1               READ WRITE NO
     4 PDB3               READ WRITE NO
     5 PDB2               READ WRITE NO
     7 PDB4               MOUNTED

SQL> drop pluggable database pdb4 keep datafiles;

Pluggable database dropped.

SQL> show pdbs;

    CON_ID CON_NAME              OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
     2 PDB$SEED              READ ONLY  NO
     3 PDB1               READ WRITE NO
     4 PDB3               MOUNTED
     5 PDB2               MOUNTED

Do  the following operation on the target  databases
SQL> show pdbs;

    CON_ID CON_NAME              OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
     2 PDB$SEED              READ ONLY  NO
     3 PDB11              MOUNTED
     4 PDB22              MOUNTED
SQL> show con_name;

CON_NAME
------------------------------
CDB$ROOT
SQL> select * from global_name;

GLOBAL_NAME
--------------------------------------------------------------------------------
ORCL19C2

CREATE PLUGGABLE DATABASE pdb4 USING '/u01/app/oracle/oradata/pdb4.xml' --the path should be the same as  we saved in the source database
  NOCOPY 
  3    TEMPFILE REUSE;

Pluggable database created.

SQL> show pdbs;

    CON_ID CON_NAME              OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
     2 PDB$SEED              READ ONLY  NO
     3 PDB11              MOUNTED
     4 PDB22              MOUNTED
     6 PDB4               MOUNTED
SQL> alter pluggable database pdb4 open;

Pluggable database altered.

SQL> show pdbs;

    CON_ID CON_NAME              OPEN MODE  RESTRICTED
---------- ------------------------------ ---------- ----------
     2 PDB$SEED              READ ONLY  NO
     3 PDB11              MOUNTED
     4 PDB22              MOUNTED
     6 PDB4               READ WRITE NO
SQL> 
 

 

参考文档;Oracle Multitenant Administrator’s Guide, 19chttps://docs.oracle.com/en/database/oracle/oracle-database/19/multi/index.html