*分为四步 */

 /*第1步：创建临时表空间  */

 create temporarytablespace 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;