oracle创建表空间和用户

/*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;


/* 用户锁定和解锁，修改密码*/
alter user username account lock/unlock;
alter user username identified by password;