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oracle tablespace management

2011-11-02 21:38 197 查看

创建表空间

SQL> create tablespace tabs
2  datafile '/u01/app/oracle/oradata/aircy/tabs01.dbf' size 2m
3  autoextend on  next 1m maxsize unlimited
4  segment space management auto
5  extent management local;

离线/在线/只读/可读可写

SQL> alter tablespace tabs offline;

Tablespace altered.

SQL> alter tablespace tabs online;

Tablespace altered.

SQL> alter tablespace tabs read only;

Tablespace altered.

SQL> alter tablespace tabs read write;

Tablespace altered

扩展表空间

修改数据文件大小

SQL> alter database datafile '/u01/app/oracle/oradata/aircy/tabs01.dbf' resize 3m;

Tablespace altered.

增加数据文件

SQL> alter tablespace tabs add datafile '/u01/app/oracle/oradata/aircy/tabs02.dbf' size 1m
2  autoextend on  next 1m maxsize unlimited;

Tablespace altered.

将表空间的数据文件设成自动扩展

SQL> alter database datafile  '/u01/app/oracle/oradata/aircy/tabs03.dbf'
2  autoextend on next 4m maxsize unlimited;

Tablespace altered.

重新命名表空间名字

SQL> alter tablespace tabs rename to tab1;

Tablespace altered.

删除表空间

删除表空间

SQL> drop tablespace tab1 including contents;

Tablespace dropped.

删除表空间同时删除数据文件

SQL>  drop tablespace indextb including contents and datafiles;

Tablespace dropped.

删除数据文件

SQL> alter tablespace tabs drop datafile  '/u01/app/oracle/oradata/aircy/tabs02.dbf';

Tablespace altered.

SQL> alter database datafile  '/u01/app/oracle/oradata/aircy/tabs02.dbf' offline drop;

Database altered.

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标签： oracle tabs sql database 扩展

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