oracle 12c 创建、开关、删除

pdb测试：创建、开关、删除

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

ORACLE12C中提出来CDB和PDB的概念

他们可以分别理解为容器和插件(PDB插入在CDB中)

CDB的管理和传统数据库区别不大

--确认当前cdb

SQL> select name,cdb from v$database;

NAME CDB

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

ZARADB YES

--查询当前pdb基本信息

col pdb_name for a30

select pdb_id,pdb_name,dbid,status,creation_scn from dba_pdbs;

select con_id,dbid,NAME,OPEN_MODE from v$pdbs;

PDB_ID PDB_NAME DBID STATUS CREATION_SCN

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

3 PDB1 3337485269 NORMAL 1909544

2 PDB$SEED 4072348290 NORMAL 1720741

SQL>

CON_ID DBID NAME OPEN_MODE

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

2 4072348290 PDB$SEED READ ONLY

3 3337485269 PDB1 READ WRITE

--创建pdb

--1直接创建

CREATE PLUGGABLE DATABASE pdb2

ADMIN USER pdb2dba IDENTIFIED BY anbaisheng

STORAGE (MAXSIZE 2G MAX_SHARED_TEMP_SIZE 100M)

DEFAULT TABLESPACE tbs_pdb2 DATAFILE '/opt/oracle/oradata/ZARADB/datafile/pdb2_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

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/ZARADB/E98BEB85B1A80C56E0439A02A8C05841/datafile/','/opt/oracle/oradata/ZARADB/datafile/pdb2');

--打开关闭pdb

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;

--unplug

--unplug后pdb只能mount不能open

alter pluggable database pdb2 unplug into '/tmp/pdb2.xml';

--unplug后删除pdb，再使用xml文件加回pdb

drop pluggable database pdb2;

create pluggable database pdb2 using '/tmp/pdb2.xml' nocopy;