oracle表空间和数据文件的管理！
--查看表空间信息：
SQL> select TABLESPACE_NAME,BLOCK_SIZE,STATUS,CONTENTS,EXTENT_MANAGEMENT,SEGMENT_SPACE_MANAGEMENT from dba_tablespaces;
TABLESPACE_NAME BLOCK_SIZE STATUS CONTENTS EXTENT_MAN SEGMEN
------------------------------ ---------- --------- --------- ---------- ------
SYSTEM 8192 ONLINE PERMANENT LOCAL MANUAL
UNDOTBS1 8192 ONLINE UNDO LOCAL MANUAL
SYSAUX 8192 ONLINE PERMANENT LOCAL AUTO
TEMP 8192 ONLINE TEMPORARY LOCAL MANUAL
USERS 8192 ONLINE PERMANENT LOCAL AUTO
TEST01 8192 ONLINE PERMANENT LOCAL AUTO
PERFSTAT 8192 ONLINE PERMANENT LOCAL AUTO
已选择7行。
SQL> select * from v$tablespace;
TS# NAME INC BIG FLA ENC
---------- ------------------------------ --- --- --- ---
0 SYSTEM YES NO YES
1 UNDOTBS1 YES NO YES
2 SYSAUX YES NO YES
3 TEMP NO NO YES
4 USERS YES NO YES
5 TEST01 YES NO YES
6 PERFSTAT YES NO YES
已选择7行。
--查看数据文件信息：
SQL> select FILE_ID,FILE_NAME,TABLESPACE_NAME,BYTES/1024/1024,AUTOEXTENSIBLE,USER_BYTES/1024/1024,ONLINE_STATUS from dba_data_files;
FILE_ID FILE_NAME TABLESPACE_NAME BYTES/1024/1024 AUT USER_BYTES/1024/1024 ONLINE_
---------- --------------------------------------------- ------------------------------ --------------- --- -------------------- -------
1 /u01/app/oracle/oradata/orcl/system01.dbf SYSTEM 490 YES 489.9375 SYSTEM
2 /u01/app/oracle/oradata/orcl/undotbs01.dbf UNDOTBS1 310 YES 309.9375 ONLINE
3 /u01/app/oracle/oradata/orcl/sysaux01.dbf SYSAUX 270 YES 269.9375 ONLINE
4 /u01/app/oracle/oradata/orcl/users01.dbf USERS 5 YES 4.9375 ONLINE
5 /u01/app/oracle/oradata/orcl/test01.dbf TEST01 1 NO .9375 ONLINE
6 /u01/app/oracle/oradata/orcl/perfstat01.dba PERFSTAT 512 NO 511.9375 ONLINE
已选择6行。
SQL> select FILE#,STATUS,ENABLED,NAME,BYTES/1024/1024 from v$datafile;
FILE# STATUS ENABLED NAME BYTES/1024/1024
---------- ------- ---------- --------------------------------------------- ---------------
1 SYSTEM READ WRITE /u01/app/oracle/oradata/orcl/system01.dbf 490
2 ONLINE READ WRITE /u01/app/oracle/oradata/orcl/undotbs01.dbf 310
3 ONLINE READ WRITE /u01/app/oracle/oradata/orcl/sysaux01.dbf 270
4 ONLINE READ WRITE /u01/app/oracle/oradata/orcl/users01.dbf 5
5 ONLINE READ WRITE /u01/app/oracle/oradata/orcl/test01.dbf 1
6 ONLINE READ WRITE /u01/app/oracle/oradata/orcl/perfstat01.dba 512
已选择6行。
--创建表空间：
SQL> create tablespace test datafile '/u01/app/oracle/test01.dbf'
2 size 1m autoextend on next 1m maxsize 10m
3 extent management local autoallocate
4 segment space management auto;
表空间已创建。
SQL> select d.file_id,d.file_name,d.bytes/1024/1024,d.MAXBYTES/1024/1024,d.AUTOEXTENSIBLE,t.EXTENT_MANAGEMENT,t.SEGMENT_SPACE_MANAGEMENT
2 from dba_tablespaces t,dba_data_files d where t.TABLESPACE_NAME = d.TABLESPACE_NAME and t.TABLESPACE_NAME = 'TEST';
FILE_ID FILE_NAME D.BYTES/1024/1024 D.MAXBYTES/1024/1024 AUT EXTENT_MAN SEGMEN
---------- --------------------------------------------- ----------------- -------------------- --- ---------- ------
7 /u01/app/oracle/test01.dbf 1 10 YES LOCAL AUTO
--调整表空间数据文件大小：
SQL> alter database datafile '/u01/app/oracle/test01.dbf' resize 2m;
数据库已更改。
SQL> select d.file_id,d.file_name,d.bytes/1024/1024,d.MAXBYTES/1024/1024,d.AUTOEXTENSIBLE,t.EXTENT_MANAGEMENT,t.SEGMENT_SPACE_MANAGEMENT
2 from dba_tablespaces t,dba_data_files d where t.TABLESPACE_NAME = d.TABLESPACE_NAME and t.TABLESPACE_NAME = 'TEST';
FILE_ID FILE_NAME D.BYTES/1024/1024 D.MAXBYTES/1024/1024 AUT EXTENT_MAN SEGMEN
---------- --------------------------------------------- ----------------- -------------------- --- ---------- ------
7 /u01/app/oracle/test01.dbf 2 10 YES LOCAL AUTO
--更改表空间离线：
SQL> alter tablespace test offline;
表空间已更改。
SQL> select d.file_id,d.file_name,d.bytes/1024/1024,d.MAXBYTES/1024/1024,d.AUTOEXTENSIBLE,t.EXTENT_MANAGEMENT,t.SEGMENT_SPACE_MANAGEMENT,ONLINE_STATUS
2 from dba_tablespaces t,dba_data_files d where t.TABLESPACE_NAME = d.TABLESPACE_NAME and t.TABLESPACE_NAME = 'TEST';
FILE_ID FILE_NAME D.BYTES/1024/1024 D.MAXBYTES/1024/1024 AUT EXTENT_MAN SEGMEN ONLINE_
---------- --------------------------------------------- ----------------- -------------------- --- ---------- ------ -------
7 /u01/app/oracle/test01.dbf LOCAL AUTO OFFLINE
--更改表空间在线：
SQL> alter tablespace test online;
表空间已更改。
SQL> select d.file_id,d.file_name,d.bytes/1024/1024,d.MAXBYTES/1024/1024,d.AUTOEXTENSIBLE,t.EXTENT_MANAGEMENT,t.SEGMENT_SPACE_MANAGEMENT,ONLINE_STATUS
2 from dba_tablespaces t,dba_data_files d where t.TABLESPACE_NAME = d.TABLESPACE_NAME and t.TABLESPACE_NAME = 'TEST';
FILE_ID FILE_NAME D.BYTES/1024/1024 D.MAXBYTES/1024/1024 AUT EXTENT_MAN SEGMEN ONLINE_
---------- --------------------------------------------- ----------------- -------------------- --- ---------- ------ -------
7 /u01/app/oracle/test01.dbf 2 10 YES LOCAL AUTO ONLINE
--移动表空间数据文件位置：
SQL> alter tablespace test offline;
表空间已更改。
SQL> ! mv /u01/app/oracle/test01.dbf /u01/app/oracle/oradata/orcl/test001.dbf
SQL> alter tablespace test rename datafile '/u01/app/oracle/test01.dbf' to '/u01/app/oracle/oradata/orcl/test001.dbf';
表空间已更改。
SQL> alter tablespace test online;
表空间已更改。
SQL> select d.file_id,d.file_name,d.bytes/1024/1024,d.MAXBYTES/1024/1024,d.AUTOEXTENSIBLE,t.EXTENT_MANAGEMENT,t.SEGMENT_SPACE_MANAGEMENT,ONLINE_STATUS
2 from dba_tablespaces t,dba_data_files d where t.TABLESPACE_NAME = d.TABLESPACE_NAME and t.TABLESPACE_NAME = 'TEST';
FILE_ID FILE_NAME D.BYTES/1024/1024 D.MAXBYTES/1024/1024 AUT EXTENT_MAN SEGMEN ONLINE_
---------- --------------------------------------------- ----------------- -------------------- --- ---------- ------ -------
7 /u01/app/oracle/oradata/orcl/test001.dbf 2 10 YES LOCAL AUTO ONLINE
--向表空间添加数据文件：
SQL> alter tablespace test add datafile '/u01/app/oracle/oradata/orcl/test002.dbf' size 1m;
表空间已更改。
SQL> select d.file_id,d.file_name,d.bytes/1024/1024,d.MAXBYTES/1024/1024,d.AUTOEXTENSIBLE,t.EXTENT_MANAGEMENT,t.SEGMENT_SPACE_MANAGEMENT,ONLINE_STATUS
2 from dba_tablespaces t,dba_data_files d where t.TABLESPACE_NAME = d.TABLESPACE_NAME and t.TABLESPACE_NAME = 'TEST';
FILE_ID FILE_NAME D.BYTES/1024/1024 D.MAXBYTES/1024/1024 AUT EXTENT_MAN SEGMEN ONLINE_
---------- --------------------------------------------- ----------------- -------------------- --- ---------- ------ -------
7 /u01/app/oracle/oradata/orcl/test001.dbf 2 10 YES LOCAL AUTO ONLINE
8 /u01/app/oracle/oradata/orcl/test002.dbf 1 0 NO LOCAL AUTO ONLINE
--删除表中间中数据文件：
alter tablespace TEMP drop tempfile 'F:\ORADATA\ACSYSTEST_TMP04.DBF';
--更改表空间为只读：
SQL> alter tablespace test read only;
表空间已更改。
SQL> select d.file_id,d.file_name,d.bytes/1024/1024,d.MAXBYTES/1024/1024,d.AUTOEXTENSIBLE,t.EXTENT_MANAGEMENT,t.SEGMENT_SPACE_MANAGEMENT,d.ONLINE_STATUS,t.status
2 from dba_tablespaces t,dba_data_files d where t.TABLESPACE_NAME = d.TABLESPACE_NAME and t.TABLESPACE_NAME = 'TEST';
FILE_ID FILE_NAME D.BYTES/1024/1024 D.MAXBYTES/1024/1024 AUT EXTENT_MAN SEGMEN ONLINE_ STATUS
---------- --------------------------------------------- ----------------- -------------------- --- ---------- ------ ------- ---------
7 /u01/app/oracle/oradata/orcl/test001.dbf 2 10 YES LOCAL AUTO ONLINE READ ONLY
8 /u01/app/oracle/oradata/orcl/test002.dbf 1 0 NO LOCAL AUTO ONLINE READ ONLY
--更改表空间为读写：
SQL> alter tablespace test read write;
表空间已更改。
SQL> select d.file_id,d.file_name,d.bytes/1024/1024,d.MAXBYTES/1024/1024,d.AUTOEXTENSIBLE,t.EXTENT_MANAGEMENT,t.SEGMENT_SPACE_MANAGEMENT,d.ONLINE_STATUS,t.status
2 from dba_tablespaces t,dba_data_files d where t.TABLESPACE_NAME = d.TABLESPACE_NAME and t.TABLESPACE_NAME = 'TEST';
FILE_ID FILE_NAME D.BYTES/1024/1024 D.MAXBYTES/1024/1024 AUT EXTENT_MAN SEGMEN ONLINE_ STATUS
---------- --------------------------------------------- ----------------- -------------------- --- ---------- ------ ------- ---------
7 /u01/app/oracle/oradata/orcl/test001.dbf 2 10 YES LOCAL AUTO ONLINE ONLINE
8 /u01/app/oracle/oradata/orcl/test002.dbf 1 0 NO LOCAL AUTO ONLINE ONLINE
--更改数据库全局缺省表空间：
SQL> select * from DATABASE_PROPERTIES where PROPERTY_NAME = 'DEFAULT_PERMANENT_TABLESPACE'; PROPERTY_NAME PROPERTY_VALUE DESCRIPTION ------------------------------ ------------------------------ ---------------------------------------- DEFAULT_PERMANENT_TABLESPACE USERS Name of default permanent tablespace SQL> alter database default tablespace test01; 数据库已更改。 SQL> select * from DATABASE_PROPERTIES where PROPERTY_NAME = 'DEFAULT_PERMANENT_TABLESPACE'; PROPERTY_NAME PROPERTY_VALUE DESCRIPTION ------------------------------ ------------------------------ ---------------------------------------- DEFAULT_PERMANENT_TABLESPACE TEST01 Name of default permanent tablespace SQL> alter database default tablespace users; 数据库已更改。 SQL> select * from DATABASE_PROPERTIES where PROPERTY_NAME = 'DEFAULT_PERMANENT_TABLESPACE'; PROPERTY_NAME PROPERTY_VALUE DESCRIPTION ------------------------------ ------------------------------ ---------------------------------------- DEFAULT_PERMANENT_TABLESPACE USERS Name of default permanent tablespace
--删除表空间：
SQL> drop tablespace test including contents and datafiles; 表空间已删除。