• 【转】Oracle TableSpace Management (管理)


     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

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  • 原文地址:https://www.cnblogs.com/gzh4455/p/2521132.html
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