oracle pdb 表空间,Oracle 12c CDB 和 PDB 表空间管理和配置 说明

注：本文谢绝转载。

1  管理CDB中的表空间

CDB表空间的管理和non-CDB 表空间的管理一样，CDB 也有一个实例，在安装的时候指定。

--查看表空间：

SQL> select instance_name fromv$instance;

INSTANCE_NAME

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

Cndba

SQL> col file_name for a50

SQL> selecttablespace_name,file_id,file_name from dba_data_files;

TABLESPACE_NAME                   FILE_ID FILE_NAME

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

USERS                                   6 /u01/app/oracle/oradata/cndba/users01.dbf

UNDOTBS1                                4/u01/app/oracle/oradata/cndba/undotbs01.dbf

SYSAUX                                  3/u01/app/oracle/oradata/cndba/sysaux01.dbf

SYSTEM                                  1 /u01/app/oracle/oradata/cndba/system01.dbf

--切换container：

SQL> set lin 140

SQL> select con_id, dbid, guid, name ,open_mode from v$pdbs;

CON_ID       DBID GUID                             NAME         OPEN_MODE

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

2 4088301206 F7C1E3C96BBF0585E0430A01A8C05459 PDB$SEED     READ ONLY

3  426143573F7C209EB1DFC0854E0430A01A8C0B787 PDBCNDBA    READ WRITE

4 1231796139 F812DE1B6A8F363AE0430A01A8C0C759 PCNDBA2      READ WRITE

SQL> alter session setcontainer=pcndba2;

Session altered.

SQL> selecttablespace_name,file_id,file_name from dba_data_files;

TABLESPACE_NAME      FILE_ID FILE_NAME

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

SYSTEM                    12/u01/app/oracle/oradata/cndba/pcndba2/system01.dbf

SYSAUX                    13/u01/app/oracle/oradata/cndba/pcndba2/sysaux01.dbf

USERS                     14/u01/app/oracle/oradata/cndba/pcndba2/pcndba2_users01.dbf

--表空间具体操作示例

SQL> alter session setcontainer=CDB$ROOT;

Session altered.

SQL> show con_name

CON_NAME

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

CDB$ROOT

SQL> CREATE TABLESPACE dave

2    DATAFILE‘/u01/app/oracle/oradata/cndba/pcndba2/dave01.dbf‘ SIZE 1M

3    AUTOEXTEND ON NEXT 1M;

Tablespace cr