oracle中复制一个用户

现场人员需要将USRDB用户复制出来，弄个USRDB1用户，在这个用户上导入数据做测试。

复制方案的思路:
1.查USRDB的默认表空间，PROFILE，系统权限，对象权限，角色，
2.建新用户，授权，
3.导出USRDB方案
4.导入方案

步骤如下：

-- 1.查USRDB用户的信息
SQL> select default_tablespace, temporary_tablespace,profile from dba_users where username='USRDB';

DEFAULT_TABLESPACE             TEMPORARY_TABLESPACE           PROFILE
------------------------------ ------------------------------ ------------------------------
CBS_USER_DAT                   TEMP                           DEFAULT


-- 2.建USRDB1用户
SQL> create user USRDB1 identified by USRDB1 default tablespace CBS_USER_DAT;

-- 3.查出USRDB的系统权限，对象权限，角色
SQL> select 'grant '||privilege||' to USRDB1;' from dba_sys_privs where grantee='USRDB';  -->系统权限

'GRANT'||PRIVILEGE||'TOUSRDB1;'
----------------------------------------------------------
grant CREATE ANY SEQUENCE to USRDB1;
grant CREATE SEQUENCE to USRDB1;
grant CREATE VIEW to USRDB1;
grant UNLIMITED TABLESPACE to USRDB1;
grant CREATE ANY TRIGGER to USRDB1;
grant CREATE PROCEDURE to USRDB1;
grant CREATE ANY PROCEDURE to USRDB1;
grant CREATE ANY TABLE to USRDB1;

8 rows selected.

SQL> select 'grant '||privilege||' on '||table_name||' to USRDB1;' from dba_tab_privs where grantee='USRDB';  -->对象权限

no rows selected

SQL> select 'grant '||granted_role||' to USRDB1;' from dba_role_privs where grantee='USRDB';  -->角色

'GRANT'||GRANTED_ROLE||'TOUSRDB1;'
------------------------------------------------
grant RESOURCE to USRDB1;
grant CONNECT to USRDB1;
grant DBA to USRDB1;

-- 4.给USRDB1用户制授权
运行上一步骤执行得到的结果
grant CREATE ANY SEQUENCE to USRDB1;
grant CREATE SEQUENCE to USRDB1;
grant CREATE VIEW to USRDB1;
grant UNLIMITED TABLESPACE to USRDB1;
grant CREATE ANY TRIGGER to USRDB1;
grant CREATE PROCEDURE to USRDB1;
grant CREATE ANY PROCEDURE to USRDB1;
grant CREATE ANY TABLE to USRDB1;

grant RESOURCE to USRDB1;
grant CONNECT to USRDB1;
grant DBA to USRDB1;

-- 5.导出USRDB方案
exp "'sys/oracle as sysdba'" owner=USRDB file=USRDBl.dmp rows=n   -->因为不需要导数据，所以加了rows=n

-- 6.导入方案
imp "'sys/oracle as sysdba'" fromuser=USRDB touser=USRDB1 file=USRDBll.dmp
原文地址：http://blog.csdn.net/access20032004/article/details/6904852