oracle创建表空间

使用SQL*Plus登录数据库
sys/password@sid as sysdba



一，创建表空间
1.创建临时表空间

create temporary tablespace user_temp   

tempfile 'D:\oracle\oradata\Oracle9i\user_temp.dbf'  

size 50m   

autoextend on   

next 50m maxsize 20480m   

extent management local; 

2.创建数据表空间  

create tablespace test_data   

logging   

datafile 'D:\oracle\oradata\Oracle9i\user_data.dbf'  

size 50m   

autoextend on   

next 50m maxsize 20480m   

extent management local;

3.建立UNDO表空间

create undo tablespace UNDOTBS2
datafile 'F:\oracle\product\10.1.0\oradata\liweiwei\undo2.dbf'
size 50m;

3.建立大文件表空间

create bigfile tablespace bigfile_data
datafile 'F:\oracle\product\10.1.0\oradata\liweiwei\big01.dbf'
size 50m

二、改变表空间状态
1.使表空间脱机

ALTER TABLESPACE bigfile_data OFFLINE; 

如果是意外删除了数据文件，则必须带有RECOVER选项

ALTER TABLESPACE bigfile_data OFFLINE FOR RECOVER; 

2.使表空间联机

ALTER TABLESPACE game ONLINE;

3.使数据文件脱机

ALTER DATABASE DATAFILE 7 OFFLINE;

4.使数据文件联机

ALTER DATABASE DATAFILE 7 ONLINE; 

5.使表空间只读

ALTER TABLESPACE game READ ONLY; 

6.使表空间可读写

ALTER TABLESPACE game READ WRITE; 

五、删除表空间

DROP TABLESPACE data01 INCLUDING CONTENTS AND DATAFILES; 

六、扩展表空间
首先查看表空间的名字和所属文件

select tablespace_name,
       file_id,
       file_name,       
       round(bytes / (1024 * 1024), 0) total_space
  from dba_data_files
 order by tablespace_name;

1.增加数据文件

ALTER TABLESPACE game 

ADD DATAFILE '/oracle/oradata/db/GAME02.dbf' SIZE 1000M; 

2.手动增加数据文件尺寸

ALTER DATABASE DATAFILE '/oracle/oradata/db/GAME.dbf' 

RESIZE 4000M; 

3.设定数据文件自动扩展

ALTER DATABASE DATAFILE '/oracle/oradata/db/GAME.dbf 

AUTOEXTEND ON NEXT 100M 

MAXSIZE 10000M; 

设定后查看表空间信息

SELECT A.TABLESPACE_NAME,
       A.BYTES           TOTAL,
       B.BYTES           USED,
       C.BYTES           FREE,
       (B.BYTES * 100) / A.BYTES "% USED",
       (C.BYTES * 100) / A.BYTES "% FREE"
  FROM SYS.SM$TS_AVAIL A, SYS.SM$TS_USED B, SYS.SM$TS_FREE C
 WHERE A.TABLESPACE_NAME = B.TABLESPACE_NAME
   AND A.TABLESPACE_NAME = C.tablespace_name