Oracle教程：移動所有數(shù)據(jù)文件

Oracle教程：移動所有數(shù)據(jù)文件，最近在一個開發(fā)庫上存在硬盤空間緊張的問題，新添加了一塊盤，準(zhǔn)備把所有的數(shù)據(jù)文件挪到新盤上。

如題，，最近在一個開發(fā)庫上存在硬盤空間緊張的問題，新添加了一塊盤，準(zhǔn)備把所有的數(shù)據(jù)文件挪到新盤上。
首先列出需要移動的數(shù)據(jù)文件，數(shù)據(jù)文件隸屬于表空間，我們從表空間用途可以如下分門別類：
控制文件
System表空間
undo表空間
temporary表空間
redo日志文件
user_data表空間

SQL> select tablespace_name from dba_tablespaces;

TABLESPACE_NAME
------------------------------
SYSTEM
UNDOTBS1
SYSAUX
TEMP
USERS
GTLIONS
GTLIONSTMP

SQL> select file_name,file_id,tablespace_name from dba_data_Files;
FILE_NAME FILE_ID TABLESPACE_NAME
-------------------------------------------------- ---------- ------------------------------
/u01/Oracle/10g/oradata/gt10g/users01.dbf 4 USERS
/u01/oracle/10g/oradata/gt10g/sysaux01.dbf 3 SYSAUX
/u01/oracle/10g/oradata/gt10g/undotbs01.dbf 2 UNDOTBS1
/u01/oracle/10g/oradata/gt10g/system01.dbf 1 SYSTEM
/u01/oracle/10g/oradata/gt10g/gtlions01.ora 5 GTLIONS

SQL> select file_name,file_id,tablespace_name from dba_temp_Files;

FILE_NAME FILE_ID TABLESPACE_NAME
-------------------------------------------------- ---------- ------------------------------
/u01/oracle/10g/oradata/gt10g/temp01.dbf 1 TEMP
/u01/oracle/10g/oradata/gt10g/gtlionstmp01.ora 2 GTLIONSTMP

SQL> select name from v$controlfile;

NAME
------------------------------------------------------------------------------------------------------------------------------------------------------
/u01/oracle/10g/oradata/gt10g/control01.ctl
/u01/oracle/10g/oradata/gt10g/control02.ctl
/u01/oracle/10g/oradata/gt10g/control03.ctl

SQL> select member from v$logfile;

MEMBER
------------------------------------------------------------------------------------------------------------------------------------------------------
/u01/oracle/10g/oradata/gt10g/redo03.log
/u01/oracle/10g/oradata/gt10g/redo02.log
/u01/oracle/10g/oradata/gt10g/redo01.log

針對undo表空間，我們可以在打開數(shù)據(jù)的狀態(tài)下直接操作：
SQL> create undo tablespace undotbs2 datafile '/u01/oracle/10g/oradata/gt10gnew/undotbs01.dbf' size 20m autoextend on;

Tablespace created.

SQL> show parameter undo_tablespace;

NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
undo_tablespace string UNDOTBS1
SQL> alter system set undo_tablespace='undotbs2';

System altered.

SQL> show parameter undo_tablespace;

NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
undo_tablespace string undotbs2
SQL> drop tablespace undotbs1;

Tablespace dropped.

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