/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;

/删除表空间/
drop tablespace test_data including contents and datafiles;

常用建表空间建用户语句