1、先查询空闲空间

select tablespace_name,file_id,block_id,bytes,blocks from dba_free_space; 

 

2、增加Oracle表空间

 先查询数据文件名称、大小和路径的信息,语句如下:

select tablespace_name,file_id,bytes,file_name from dba_data_files; 

 

3、修改文件大小语句如下

alter database datafile 

'需要增加的数据文件路径,即上面查询出来的路径'

resize 800M; 

 

4、创建Oracle表空间

View Code
create tablespace test 

datafile '/home/app/oracle/oradata/oracle8i/test01.dbf' size 8M 

autoextend on 

next 5M 

maxsize 10M; 

create tablespace sales 

datafile '/home/app/oracle/oradata/oracle8i/sales01.dbf' size 800M 

autoextend on 

next 50M 

maxsize unlimited 

maxsize unlimited 是大小不受限制 

 

create tablespace sales 

datafile '/home/app/oracle/oradata/oracle8i/sales01.dbf' size 800M 

autoextend on 

next 50M 

maxsize 1000M 

extent management local uniform; 

unform表示区的大小相同,默认为1M 

 

create tablespace sales 

datafile '/home/app/oracle/oradata/oracle8i/sales01.dbf' size 800M 

autoextend on 

next 50M 

maxsize 1000M 

extent management local uniform size 500K; 

unform size 500K表示区的大小相同,为500K 

 

create tablespace sales 

datafile '/home/app/oracle/oradata/oracle8i/sales01.dbf' size 800M 

autoextend on 

next 50M 

maxsize 1000M 

extent management local autoallocate; 

autoallocate表示区的大小由随表的大小自动动态改变,大表使用大区小表使用小区

 

create tablespace sales 

datafile '/home/app/oracle/oradata/oracle8i/sales01.dbf' size 800M 

autoextend on 

next 50M 

maxsize 1000M 

temporary; 

temporary创建字典管理临时表空间 

 

create temporary tablespace sales 

tempfile '/home/app/oracle/oradata/oracle8i/sales01.dbf' size 800M 

autoextend on 

next 50M 

maxsize 1000M 

创建本地管理临时表空间,如果是临时表空间,所有语句中的datafile都换为tempfile

8i系统默认创建字典管理临时表空间,要创建本地管理临时表空间要加temporary tablespace关键字

创建本地管理临时表空间时,不得使用atuoallocate参数,系统默认创建uniform管理方式

 

5.删除Oracle表空间

DROP TABLESPACE FESCO INCLUDING CONTENTS AND DATAFILES CASCADE CONSTRAINTS; 

 

6.为表空间增加数据文件:

alter tablespace sales add 

datafile '/home/app/oracle/oradata/oracle8i/sales02.dbf' size 800M 

autoextend on next 50M 

maxsize 1000M; 

创建本地管理临时Oracle表空间,如果是临时表空间,所有语句中的datafile都换为tempfile8i系统默认创建字典管理临时表空间,要创建本地管理临时表空间要加temporary tablespace关键字创建本地管理临时表空间时,不得使用atuoallocate参数,系统默认创建uniform管理方式

 

7、更改自动扩展属性:

alter database datafile 

'/home/app/oracle/oradata/oracle8i/sales01.dbf', 

'/home/app/oracle/oradata/oracle8i/sales02.dbf' 

'/home/app/oracle/oradata/oracle8i/sales01.dbf 

autoextend off; 

 

8、创建用户并指定表空间:

create user username identified by password

default tablespace test_data

temporary tablespace test_temp;

 

9、改变表空间状态 

View Code
1.使表空间脱机

ALTER TABLESPACE game OFFLINE;

如果是意外删除了数据文件,则必须带有RECOVER选项

ALTER TABLESPACE game 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 3 OFFLINE;

4.使数据文件联机

ALTER DATABASE DATAFILE 3 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;


10、表空间分类:

View Code
1.Permanent tablespace
create tablespace ts_something
  logging
  datafile '/dbf1/ts_sth.dbf' 
  size 32m 
  autoextend on 
  next 32m maxsize 2048m
  extent management local;

create tablespace data datafile '/home/oracle/databases/ora10/data.dbf'
size                                  10M
autoextend on maxsize                200M
extent management local uniform size  64K;

2.Temporary tablespace
create temporary tablespace temp_mtr 
tempfile '/dbf1/mtr_temp01.dbf' 
size 32m 
autoextend on 
next 32m maxsize 2048m
extent management local;

Note, a temporary tablespace has tempfiles, not datafiles.  

3.Undo tablespace
create undo tablespace ts_undo
datafile '/dbf/undo.dbf' 
size 100M;

4.Misc
    More than one datafile can be created with a single create tablespace command: 
create tablespace ts_sth 
datafile 'c:\xx\sth_01.dbf' size 4M autoextend off,
         'c:\xx\sth_02.dbf' size 4M autoextend off,
         'c:\xx\sth_03.dbf' size 4M autoextend off
logging
extent management local;

 

 

参考地址:

http://database.51cto.com/art/200910/158936.htm

http://www.adp-gmbh.ch/ora/sql/create_tablespace.html

http://space.itpub.net/13873293/viewspace-605134

posted on 2012-05-28 12:50  gzh4455  阅读(313)  评论(0编辑  收藏  举报