oralce 表空间常用操作（查询 删除 增加）

1. 查看表空间物理文件的名称及大小 

SELECT tablespace_name,
file_id,
file_name,
round(bytes / (1024 * 1024), 0) total_space
FROM dba_data_files
ORDER BY tablespace_name;
参考：http://www.jb51.net/article/34564.htm

2. 删除

步骤一：  删除user

drop user ×× cascade

说明： 删除了user，只是删除了该user下的schema objects，是不会删除相应的tablespace的。

步骤二： 删除tablespace

DROP TABLESPACE tablespace_name INCLUDING CONTENTS AND DATAFILES;
3.  新建

/*分为四步 */

/*第1步：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;  

 

/*第2步：创建数据表空间  */

create tablespace user_data  

logging  

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

size 50m  

autoextend on  

next 50m maxsize 20480m  

extent management local;  

 

/*第3步：创建用户并指定表空间  */

create user username identified by password  

default tablespace user_data  

temporary tablespace user_temp;  

 

/*第4步：给用户授予权限  */

grant connect,resource,dba to username;

字符集

select * from nls_instance_parameters

select * from nls_database_parameters

create temporary tablespace testsdsyportaltemp  

tempfile 'D:\ProgramFilesOracle\oracle\product\10.2.0\oradata\orcl\testsdsyportaltemp.dbf' 

size 50m  

autoextend on  

next 50m maxsize 20480m  

extent management local;  

create tablespace testsdsyportal  

logging  

datafile 'D:\ProgramFilesOracle\oracle\product\10.2.0\oradata\orcl\testsdsyportal.dbf' 

size 50m  

autoextend on  

next 50m maxsize 20480m  

extent management local;  

create temporary tablespace sdsyicstesttemp  

tempfile 'D:\ProgramFilesOracle\oracle\product\10.2.0\oradata\orcl\sdsyicstest.dbf' 

size 50m  

autoextend on  

next 50m maxsize 20480m  

extent management local;  

create tablespace sdsyicstest 

logging  

datafile 'D:\ProgramFilesOracle\oracle\product\10.2.0\oradata\orcl\sdsyicstest.dbf' 

size 50m  

autoextend on  

next 50m maxsize 20480m  

extent management local;  

create temporary tablespace tempsdsyics  

tempfile 'D:\ProgramFilesOracle\oracle\product\10.2.0\oradata\orcl\tempsdsyics.dbf' 

size 50m  

autoextend on  

next 50m maxsize 20480m  

extent management local;  

create tablespace sdsyics

logging  

datafile 'D:\ProgramFilesOracle\oracle\product\10.2.0\oradata\orcl\sdsyics.dbf' 

size 50m  

autoextend on  

next 50m maxsize 20480m  

extent management local;