数据表空间
数据表空间的文件转移示例展示如下：
1.登录sqlplus
SQL>sqlplus / as sysdba
2.确认需要迁移的数据文件
SQL> select * from dba_data_files where tablespace_name like 'USERS';
FILE_NAME FILE_ID TABLESPACE_NAME BYTES BLOCKS STATUS RELATIVE_FNO AUT MAXBYTES MAXBLOCKS INCREMENT_BY USER_BYTES USER_BLOCKS ONLINE_
---------- ------------------------------ ---------- ---------- --------- ------------ ------------ ------------ -------- -------- -------- --------
/oradata/oracle/app/oracle/oradata/test/users01.dbf 6 USERS 1028915200 125600 AVAILABLE 6 YES 3.4360E+10 4194302 160 1027866624 125472 ONLINE
3.修改USERS表空间为Offline状态
SQL>alter tablespace USERS offline;
Tablespace altered.
4.查看表空间状态
SQL> select * from dba_data_files where tablespace_name like 'USERS';
FILE_NAME FILE_ID TABLESPACE_NAME BYTES BLOCKS STATUS RELATIVE_FNO AUT MAXBYTES MAXBLOCKS INCREMENT_BY USER_BYTES USER_BLOCKS ONLINE_
---------- ------------------------------ ---------- ---------- --------- ------------ ------------ ------------ -------- -------- -------- --------
/oradata/oracle/app/oracle/oradata/test/users01.dbf 6 USERS 1028915200 125600 AVAILABLE 6 YES 3.4360E+10 4194302 160 1027866624 125472 OFFLINE
5.拷贝USERS数据表空间文件
$ cp /oradata/oracle/app/oracle/oradata/test/users01.dbf /oradata/oracle/datafile
6.修改oracle表空间指向地址
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/users01.dbf' to '/oradata/oracle/datafile/users01.dbf';
Database altered.
7.修改表空间为Online状态
SQL> alter tablespace USERS online;
Tablespace altered.
8.查看修改后的表空间文件存储位置.
SQL> select file_name from sys.dba_data_files;
FILE_NAME
--------------------------------------------------------------------------------
/oradata/oracle/app/oracle/oradata/test/system01.dbf
/oradata/oracle/app/oracle/oradata/test/sysaux01.dbf
/oradata/oracle/datafile/users01.dbf
/oradata/oracle/app/oracle/oradata/test/undotbs01.dbf
9.查看空闲表空间
SQL> select tablespace_name ,sum(bytes)/1024/1024||'M' as freespaces from dba_data_files group by tablespace_name;
TABLESPACE_NAME FREESPACES
------------------------------ -----------------------------------------
SYSAUX 1070M
UNDOTBS1 355M
USERS 981.25M
SYSTEM 810M
10删除原数据文件
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$ rm -rf /oradata/oracle/app/oracle/oradata/test/users01.dbf
系统表空间
数据表空间的文件转移示例展示如下：
1.登录sqlplus
SQL>sqlplus / as sysdba
2.确认需要迁移的数据文件
SQL> select name from v$controlfile;
NAME
--------------------------------------------------------------------------------
/oradata/oracle/app/oracle/oradata/test/control01.ctl
/oradata/oracle/app/oracle/fast_recovery_area/test/control02.ctl
SQL> select name from v$datafile;
NAME
--------------------------------------------------------------------------------
/oradata/oracle/app/oracle/oradata/test/system01.dbf
/oradata/oracle/app/oracle/oradata/test/sysaux01.dbf
/oradata/oracle/app/oracle/oradata/test/undotbs01.dbf
/oradata/oracle/datafile/users01.dbf
SQL> select member from v$logfile;
MEMBER
--------------------------------------------------------------------------------
/oradata/oracle/app/oracle/oradata/test/redo03.log
/oradata/oracle/app/oracle/oradata/test/redo02.log
/oradata/oracle/app/oracle/oradata/test/redo01.log
/oradata/oracle/app/oracle/oradata/test/standby01.log
/oradata/oracle/app/oracle/oradata/test/standby02.log
/oradata/oracle/app/oracle/oradata/test/standby03.log
/oradata/oracle/app/oracle/oradata/test/standby04.log
7 rows selected.
SQL> select name from v$tempfile;
NAME
--------------------------------------------------------------------------------
/oradata/oracle/app/oracle/oradata/test/temp01.dbf
3.创建pfile
SQL> create pfile from spfile;
File created.
4.关闭oracle实例
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
5.拷贝待转移文件
$ mkdir fast_recovery_area
$cp /oradata/oracle/app/oracle/oradata/test/control01.ctl /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/fast_recovery_area/test/control02.ctl /oradata/oracle/datafile/fast_recovery_area
$cp /oradata/oracle/app/oracle/oradata/test/system01.dbf /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/sysaux01.dbf /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/undotbs01.dbf /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/redo03.log /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/redo02.log /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/redo01.log /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/standby01.log /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/standby02.log /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/standby03.log /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/standby04.log /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/temp01.dbf /oradata/oracle/datafile
可简化为如下命令：
$ mkdir fast_recovery_area
$cp /oradata/oracle/app/oracle/oradata/test/control01.ctl /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/fast_recovery_area/test/control02.ctl /oradata/oracle/datafile/fast_recovery_area
$cp /oradata/oracle/app/oracle/oradata/test/*.dbf /oradata/oracle/datafile
$cp /oradata/oracle/app/oracle/oradata/test/*.log /oradata/oracle/datafile
6.修改pfile中控制文件路径
$cd $ORACLE_HOME/dbs
$ vi initwind.ora
*.control_files='/oradata/oracle/datafile/control01.ctl','/oradata/oracle/datafile/fast_recovery_area/control02.ctl'
7.启动实例并不打开数据库
SQL> startup mount;
ORACLE instance started.
Total System Global Area 2516582400 bytes
Fixed Size 2927528 bytes
Variable Size 671089752 bytes
Database Buffers 1828716544 bytes
Redo Buffers 13848576 bytes
Database mounted.
8.修改oracle表空间指向地址
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/system01.dbf' to '/oradata/oracle/datafile/system01.dbf';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/sysaux01.dbf' to '/oradata/oracle/datafile/sysaux01.dbf';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/undotbs01.dbf' to '/oradata/oracle/datafile/undotbs01.dbf';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/redo01.log' to '/oradata/oracle/datafile/redo01.log';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/wind/redo02.log' to '/oradata/oracle/datafile/redo02.log';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/redo03.log' to '/oradata/oracle/datafile/redo03.log';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/standby01.log' to '/oradata/oracle/datafile/standby01.log';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/standby02.log' to '/oradata/oracle/datafile/standby02.log';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/standby03.log' to '/oradata/oracle/datafile/standby03.log';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/standby04.log' to '/oradata/oracle/datafile/standby04.log';
Database altered.
SQL>alter database rename file '/oradata/oracle/app/oracle/oradata/test/temp01.dbf' to '/oradata/oracle/datafile/temp01.dbf';
Database altered.
9.查询文件是否转换成功
SQL> select name from v$datafile;
SQL> select member from v$logfile;
SQL> select name from v$tempfile;
10.打开数据库
SQL> alter database open;
Database altered.