Oracle 查询权限视图

Oracle中有很多用于查权限的视图,但很多人在需要查权限时会很困惑,不知道该用哪个视图去查,这里我列出几个常见的用于查权限的视图及其用法:

1DBA_ROLE_PRIVS

该视图主要有以下2个作用:

1) 查某个user或role拥有哪些role:

select * from DBA_ROLE_PRIVS where GRANTEE='FIRGTRS';

 

GRANTEE                        GRANTED_ROLE                   ADM DEF

------------------------------ ------------------------------ --- ---

FIRGTRS                        GTRS_DMM_UPDATE_ROLE           NO  YES

2) 查看某个role赋给了哪些user或role:select * from DBA_ROLE_PRIVS where GRANTED_ROLE='GTRS_DMM_UPDATE_ROLE';

 

GRANTEE                        GRANTED_ROLE                   ADM DEF

------------------------------ ------------------------------ --- ---

GTRSOSA                        GTRS_DMM_UPDATE_ROLE           NO  YES

FIRGTRS                        GTRS_DMM_UPDATE_ROLE           NO  YES

GTRSSUP                        GTRS_DMM_UPDATE_ROLE           NO  YES

SYSTEM                         GTRS_DMM_UPDATE_ROLE           YES YES

2DBA_TAB_PRIVS

该视图的名字包含‘TAB’,且其中有一个column叫TABLE_NAME容易造成误解,其实该视图是用于查询在object上的权限,不仅仅table的权限。

select GRANTOR,GRANTEE,TABLE_NAME,PRIVILEGE from DBA_TAB_PRIVS where TABLE_NAME='PAYAGENT' order by GRANTEE;

 

GRANTOR         GRANTEE                                      TABLE_NAME                     PRIVILEGE

--------------- ------------------------------                            ------------------------------ ---------------

GTRS            DMM_ROLE                                        PAYAGENT                       INSERT

GTRS            DMM_ROLE                                        PAYAGENT                       UPDATE

GTRS            DMM_ROLE                                         PAYAGENT                       DELETE

GTRS            DMM_ROLE                                            PAYAGENT                       SELECT

GTRS            GTRS_DMM_READONLY_ROLE       PAYAGENT                       SELECT

GTRS            GTRS_DMM_UPDATE_ROLE           PAYAGENT                       INSERT

GTRS            GTRS_DMM_UPDATE_ROLE           PAYAGENT                       DELETE

GTRS            GTRS_DMM_UPDATE_ROLE           PAYAGENT                       UPDATE

GTRS            GTRS_DMM_UPDATE_ROLE           PAYAGENT                       SELECT

GTRS            GTRS_SUPPORT_READONLY_ROLE     PAYAGENT                       SELECT

GTRS            GTRS_SUPPORT_UPDATE_ROLE       PAYAGENT                       UPDATE

GTRS            GTRS_SUPPORT_UPDATE_ROLE       PAYAGENT                       INSERT

GTRS            GTRS_SUPPORT_UPDATE_ROLE       PAYAGENT                       DELETE

GTRS            GTRS_SUPPORT_UPDATE_ROLE       PAYAGENT                       SELECT

GTRS            SUPPORT_ROLE                                    PAYAGENT                       SELECT

3DBA_SYS_PRIVS

该视图用于查询某个user拥有哪些系统权限:

select * from DBA_SYS_PRIVS where GRANTEE='FIRGTRS';

 

GRANTEE                        PRIVILEGE       ADM

------------------------------ --------------- ---

FIRGTRS                        CREATE SESSION  NO

4ROLE_SYS_PRIVS

该视图用于查询某个role拥有哪些系统权限:

select * from ROLE_SYS_PRIVS where ROLE='DBA_SUPPORT';

 

ROLE                           PRIVILEGE                      ADM

------------------------------ ------------------------------ ---

DBA_SUPPORT                    SELECT ANY SEQUENCE            NO

DBA_SUPPORT                    SELECT ANY DICTIONARY          NO

5SESSION_PRIVS

该视图用于查询当前user拥有哪些系统权限:

select * from SESSION_PRIVS;

 

PRIVILEGE

------------------------------

CREATE SESSION

SELECT ANY SEQUENCE

SELECT ANY DICTIONARY

6SESSION_ROLES

该视图用于查询当前user拥有哪些role:select * from SESSION_ROLES;

 

ROLE

------------------------------

DBA_SUPPORT

CONNECT

SELECT_CATALOG_ROLE

HS_ADMIN_ROLE

7附注: WITH ADMIN OPTIONWITH ADMIN OPTION 是针对系统权限的,它的作用可以用下面这句话说明:

Only users who have been granted a specific system privilege with the ADMIN OPTION or users with the system privileges GRANT ANY PRIVILEGE or GRANT ANY OBJECT PRIVILEGE can grant or revoke system privileges to other users.

也就是说,对于某些权限大的user来说(比如DBA,一般拥有GRANT ANY PRIVILEGE和GRANT ANY OBJECT PRIVILEGE),WITH ADMIN OPTION对它们没有影响,因为它们本身就具有给其它user或role赋系统权限的权力;而对于一般的user来说,它们的权限都是DBA赋给它们的,如果在DBA赋给它们权限时加了WITH ADMIN OPTION, 则它们还可以把这些权限再赋给其它的user,否则不能,请看以下实验:

1) 首先用DBA账号(a105024)登陆数据库,并创建两个测试账号(testuser1, testuser2):A105024@O02DMS1>create user testuser1 identified by test1;

 

User created.

 

A105024@O02DMS1>create user testuser2 identified by test2;

 

User created.

2) 用DBA账号把 create session权限赋给测试账号1:A105024@O02DMS1>grant CREATE SESSION to testuser1;

 

Grant succeeded.

3) 用测试账号1登陆数据库,并查看测试账号1的系统权限:TESTUSER1@O02DMS1>select * from user_sys_privs;

 

USERNAME                       PRIVILEGE                                ADM

------------------------------ ---------------------------------------- ---

TESTUSER1                       CREATE SESSION                           NO

4) 用测试账号1尝试把create session赋给其它user:TESTUSER@O02DMS1>grant CREATE SESSION to testuser2;

grant CREATE SESSION to testuser2

*

ERROR at line 1:

ORA-01031: insufficient privileges出现权限不足的错误,是因为ADM那列的值为NO.

 

5) 用DBA账号把create session权限赋给测试账号1,并加上with admin option:A105024@O02DMS1>grant CREATE SESSION to testuser1 with admin option;

 

Grant succeeded.

6) 查看测试账号1的系统权限:

TESTUSER1@O02DMS1>select * from user_sys_privs;

 

USERNAME                       PRIVILEGE                                ADM

------------------------------ ---------------------------------------- ---

TESTUSER1                       CREATE SESSION                           YES

7) 用测试账号1把create session赋给其它user:TESTUSER@O02DMS1>grant CREATE SESSION to testuser2;

 

Grant succeeded.

WITH GRANT OPTION类似,只是它是针对对象权限的。

 

 

 

posted on 2018-11-23 11:14  Jenrry  阅读(8540)  评论(0编辑  收藏  举报