oracle创建表空间、用户及授权

*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;