查看oracle用户所有权限，并获取授权的DDL - 数据库编程

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_grante

查看oracle用户所有权限，并获取授权的DDL(一)