克隆remote機器下的pdb創建本地pdb
目錄結構
一、說明
二、創建準備
三、克隆遠程pdb
一、說明
1、在遠程源pdb中創建數據庫本地用戶，或者使用已存在的有管理員權限的用戶。
2、在準備新創建 pdb 的cdb 中創建一個指向遠程pdb鏈接
3、可以通過公共用戶，也可以通過pdb中的普通用戶
4、數據庫鏈接可以連接到cdb的根容器，也可以直接鏈接到pdb容器。
5、數據庫連接用戶必須具有create pluggable database系統權限和sysoper管理員權限
二、創建準備
1、pdb信息
遠程信息 主機 192.168.5.41 端口1521 cdb：youcdb pdb：youpdb
pdb數據文件路徑 /opt/oracle/oradata/youcdb/youpdb/
本地信息 主機 192.168.5.40 端口1521 cdb: mycdb 待新建pdb名字爲mypdb4
pdb數據文件存放路徑 /opt/oracle/oradata/mycdb/mypdb3/
1、在遠程源cdb中創建公共用戶
create user c##useradmin identified by Passw0rd;
grant CREATE PLUGGABLE DATABASE to c##useradmin container=all;
grant connect,resource,dba,sysoper to c##useradmin container=all;
2、在遷移的pdb中查詢是否存在創建的公共用戶
SQL> select * from (select con_id,username from cdb_users where con_id=(select con_id from v$pdbs where name='YOUPDB')) where username='C##USERADMIN';
CON_ID USERNAME
---------- ------------------------------
3 C##USERADMIN
SELECT A.CON_ID,A.PDB_NAME,B.USERNAME FROM CDB_PDBS A ,CDB_USERS B WHERE A.CON_ID=B.CON_ID AND USERNAME='C##USERADMIN';
CON_ID PDB_NAME USERNAME
---------- -------------------- --------------------
3 YOUPDB C##USERADMIN
3、在本地cdb5.40中創建使用使用公共用戶指向遠程cdb的數據庫連接並測試。
SQL> create public database link adminpdb connect to c##useradmin identified by Passw0rd using '192.168.5.41/YOUCDB';
Database link created.
SQL> show con_name;
CON_NAME
------------------------------
CDB$ROOT
SQL> show con_name;
CON_NAME
------------------------------
CDB$ROOT
SQL> select * from dual@adminpdb;
D
-
X
三、克隆遠程pdb
1、切換到根容器
SQL> show con_name;
CON_NAME
------------------------------
CDB$ROOT
2、執行創建語句
SQL> create pluggable database mypdb4 from youpdb@adminpdb FILE_NAME_CONVERT=('/opt/oracle/oradata/youcdb/youpdb/','/opt/oracle/oradata/mycdb/mypdb4/');
Pluggable database created.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 MYPDB1 READ WRITE NO
4 MYPDB2 READ WRITE NO
5 YOUPDB MOUNTED
6 MYPDB3 READ WRITE NO
7 MYPDB4 MOUNTED
3、打開新創建的pdb
SQL> alter pluggable database mypdb4 open;
Pluggable database altered.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$SEED READ ONLY NO
3 MYPDB1 READ WRITE NO
4 MYPDB2 READ WRITE NO
5 YOUPDB MOUNTED
6 MYPDB3 READ WRITE NO
7 MYPDB4 READ WRITE NO
4、切換到新創建的pdb(mypdb4)
SQL> alter session set container=mypdb4;
Session altered.
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/opt/oracle/oradata/mycdb/mypdb4/system01.dbf
/opt/oracle/oradata/mycdb/mypdb4/sysaux01.dbf
/opt/oracle/oradata/mycdb/mypdb4/undotbs01.dbf
/opt/oracle/oradata/mycdb/mypdb4/users01.dbf