1. 查询数据库现在的表空间
select tablespace_name, file_name, sum(bytes)/1024/1024 table_size from dba_data_files group by tablespace_name,file_name;

2. 建立表空间
CREATE TABLESPACE data01 DATAFILE '/oracle/oradata/db/DATA01.dbf' SIZE 500M;??

3.删除表空间
DROP TABLESPACE data01 INCLUDING CONTENTS AND DATAFILES;??

4. 修改表空间大小
alter database datafile '/path/NADDate05.dbf' resize 100M??

5.增加表空间??
ALTER TABLESPACE NEWCCS ADD DATAFILE '/u03/oradata/newccs/newccs04.dbf' SIZE 4896M;

http://blog.csdn.net/tianlesoftware/archive/2009/10/17/4681973.aspx