1. 查看指定用户拥有的所有权限(系统权限、对象权限、角色)，分别是通过dba_sys_privs，dba_tab_privs，dba_role_privs三个视图来查看。

脚本：query_user_privs.sql

2. 获得指定用户所赋权限的DDL语句，有两种方式：

1).利用1中query_user_privs.sql脚本，在select 后加入grant to等关键字，使得查询输出的结果为完整的DDL语句。

脚本：get_ddl_privs_dic.sql

2)使用oracle提供的包：

dbms_metadata.get_ddl(‘USER’,’&&uname’) 获取创建user的DDL语句

dbms_metadata.get_granted_ddl(‘SYSTEM_GRANT’,’&&uname’) 获取指定用户赋予系统权限的DDL语句

dbms_metadata.get_granted_ddl(‘ROLE_GRANT’,’&&uname‘) 获取指定用户赋予角色的DDL语句

dbms_metadata.get_granted_ddl(‘OBJECT_GRANT,’&&uname’) 获取指定用户赋予对象权限的DDL语句

脚本：get_ddl_privs_pac.sql

3. 脚本

3.1 query_user_privs.sql

set echo off

set verify off

set pagesize 999

set linesize 200

col type format a20

SELECT *

FROM (SELECT a.username, 'ROLE' AS TYPE,

b.granted_role || DECODE (admin_option, 'YES', ' (With Admin Option)', NULL) what_granted

FROM sys.dba_users a, sys.dba_role_privs b

WHERE a.username = b.grantee

UNION

SELECT a.username, 'SysPrivs' AS TYPE,

b.privilege || DECODE (admin_option, 'YES', ' (With Admin Option)', NULL) what_granted

FROM sys.dba_users a, sys.dba_sys_privs b

WHERE a.username = b.grantee

UNION

SELECT a.username,

'ObjPrivs' AS TYPE,

b.owner || '.' || b.table_name || ' - ' || b.privilege ||

DECODE (grantable, 'YES', ' (With Grant Option)', NULL) what_granted

FROM sys.dba_users a, sys.dba_tab_privs b

WHERE a.username = b.grantee

ORDER BY 1)

WHERE username = upper('&input_username');

3.2 get_ddl_privs_dic.sql

clear screen

accept uname prompt 'Enter User Name : '

accept outfile prompt ' Output filename : '

col username noprint

col lne newline

set heading off pagesize 0 verify off feedback off linesize 180

spool &&outfile..gen

prompt

SELECT username, 'CREATE USER '||username||' '||

DECODE(password, 'EXTERNAL', 'IDENTIFIED EXTERNALLY',

'IDENTIFIED BY VALUES '''||password||''' ') lne,

'DEFAULT TABLESPACE '||default_tablespace lne,

'TEMPORARY TABLESPACE '||temporary_tablespace||';' lne

FROM DBA_USERS

WHERE USERNAME LIKE UPPER('%&&uname%')

OR UPPER('&&uname') IS NULL

ORDER BY USERNAME;

SELECT username, 'ALTER USER '||username||' QUOTA '||

DECODE(MAX_BYTES, -1, 'UNLIMITED', TO_CHAR(ROUND(MAX_BYTES/1024))||'K')

||' ON '||tablespace_name||';' lne

FROM DBA_TS_QUOTAS

WHERE USERNAME LIKE UPPER('%&&uname%')

OR UPPER('&&uname') IS NULL

ORDER BY USERNAME;

col grantee noprint

select grantee, granted_role granted_priv,

'GRANT '||granted_role||' to '||grantee||

DECODE(ADMIN_OPTION, 'Y', ' WITH ADMIN OPTION;', ';')

from dba_role_privs

where grantee like upper('%&&uname%')

UNION

select grantee, privilege granted_priv,

'GRANT '||privilege||' to '||grantee||

DECODE(ADMIN_OPTION, 'Y', ' WITH ADMIN OPTION;', ';')

from dba_sys_privs

where grantee like upper('%&&uname%')

order by 1, 2;

spool off

3.3 get_ddl_privs_pac.sql

clear screen

accept uname prompt 'Enter User Name : '

accept outfile prompt ' Output filename : '

spool &&outfile..gen

SET LONG 2000000 PAGESIZE 0 head off verify off feedback off linesize 180

SELECT dbms_metadata.get_ddl('USER','&&uname') FROM dual;

SELECT dbms_metadata.get_granted_ddl('SYSTEM_GRANT','&&uname') from dual;

SELECT dbms_metadata.get_granted_ddl('ROLE_GRANT','&&uname') from dual;

SELECT dbms_metadata.get_granted_ddl('OBJECT_GRANT','&&uname') from dual;

spool off