克隆remote机器下的pdb创建本地pdb
目录结构
一、说明
二、创建准备
三、克隆远程pdb
一、说明
1、在远程源pdb中创建数据库本地用户,或者使用已存在的有管理员权限的用户。
2、在准备新创建 pdb 的cdb 中创建一个指向远程pdb链接
3、可以通过公共用户,也可以通过pdb中的普通用户
4、数据库链接可以连接到cdb的根容器,也可以直接链接到pdb容器。
5、数据库连接用户必须具有create pluggable database系统权限和sysoper管理员权限
二、创建准备
1、pdb信息
远程信息 主机 192.168.5.41 端口1521 cdb:youcdb pdb:youpdb
pdb数据文件路径 /opt/oracle/oradata/youcdb/youpdb/
本地信息 主机 192.168.5.40 端口1521 cdb: mycdb 待新建pdb名字为mypdb4
pdb数据文件存放路径 /opt/oracle/oradata/mycdb/mypdb3/
1、在远程源cdb中创建公共用户
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、在迁移的pdb中查询是否存在创建的公共用户
SQL> select * from (select con_id,username from cdb_users where con_id=(select con_id from v$pdbs where name='YOUPDB')) where username='C##USERADMIN';
CON_ID USERNAME
---------- ------------------------------
3 C##USERADMIN
SELECT A.CON_ID,A.PDB_NAME,B.USERNAME FROM CDB_PDBS A ,CDB_USERS B WHERE A.CON_ID=B.CON_ID AND USERNAME='C##USERADMIN';
CON_ID PDB_NAME USERNAME
---------- -------------------- --------------------
3 YOUPDB C##USERADMIN
3、在本地cdb5.40中创建使用使用公共用户指向远程cdb的数据库连接并测试。
SQL> create public database link adminpdb connect to c##useradmin identified by Passw0rd using '192.168.5.41/YOUCDB';
Database link created.
SQL> show con_name;
CON_NAME
------------------------------
CDB$ROOT
SQL> show con_name;
CON_NAME
------------------------------
CDB$ROOT
SQL> select * from dual@adminpdb;
D
-
X
三、克隆远程pdb
1、切换到根容器
SQL> show con_name;
CON_NAME
------------------------------
CDB$ROOT
2、执行创建语句
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$SEED READ ONLY NO
3 MYPDB1 READ WRITE NO
4 MYPDB2 READ WRITE NO
5 YOUPDB MOUNTED
6 MYPDB3 READ WRITE NO
7 MYPDB4 MOUNTED
3、打开新创建的pdb
SQL> alter pluggable database mypdb4 open;
Pluggable database altered.
SQL> show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
---------- ------------------------------ ---------- ----------
2 PDB$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、切换到新创建的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