12c可插拔数据库CDB与PDB管理总结

12c可插拔数据库CDB与PDB管理总结

创建pdb
1、直接创建

 CREATE PLUGGABLE DATABASE pdb2
 ADMIN USER boswll IDENTIFIED BY oracle
 STORAGE (MAXSIZE 2G MAX_SHARED_TEMP_SIZE 100M)
 DEFAULT TABLESPACE test DATAFILE '/opt/oracle/oradata/orcl/datafile/test_001.dbf' SIZE 25M AUTOEXTEND ON;

2、以现有pdb为模板创建
现有pdb必须在read only模式下才能被创建，否则报错
以pdb1为模板创建pdb2

 alter pluggable database pdb2 close immediate;
 drop pluggable database pdb2 including datafiles;
 alter pluggable database pdb1 close;
 alter pluggable database pdb1 open read only;
 create pluggable database pdb2
 from pdb1
 file_name_convert =('/opt/oracle/oradata/orcl/E98BEB85B1A80C56E0439A02A8C05841/datafile/','/opt/oracle/oradata/orcl/datafile/pdb2');

打开关闭pdb

 alter pluggable database all open;
 alter pluggable database pdb2 close;
 alter pluggable database all close;
 alter pluggable database pdb2 close immediate;
 alter pluggable database pdb2 open;
 alter pluggable database all open;

删除pdb
与删除表空间类似，可以级联删除数据文件

 drop pluggable database pdb2;
 drop pluggable database pdb2 including datafiles;

只是删除库，不删除文件

 DROP PLUGGABLE DATABASE pdb2 KEEP DATAFILES; 

 保持启动CDB后PDB的状态
 alter pluggable database all save state;
 shut immediate;
 startup

 容器之间的切换
 alter session set container=CDB$ROOT;
 alter session set container=pdb5;

 查看当前容器
 show con_name
 select sys_context('userenv', 'con_name') "Container DB" from dual;

 查看pdb的信息
 查看CDB中有多少个pluggable database
 alter session set container=CDB$ROOT;
 show pdbs
 select con_id, dbid, guid, name , open_mode from v$pdbs;