search
HomeDatabaseMysql Tutorial如何查看某个角色被授予的权限Oracle

如何查看某个角色被授予的权限Oracle select*fromdba_role_privs;授予用户和其他角色的角色 select*fromdba_sys_privs;授予用户和其他角色的系统权限 select*fromdba_tab_privs;数据库中对象的所有授权 参考:查看角色 权限 oracle 谷歌 DBA是用户名,是角色

如何查看某个角色被授予的权限Oracle


select * from dba_role_privs; 授予用户和其他角色的角色
select * from dba_sys_privs;  授予用户和其他角色的系统权限
select * from dba_tab_privs;  数据库中对象的所有授权


参考:查看角色 权限 oracle     谷歌

DBA是用户名,是角色名?角色名

=========================================

oracle 角色和权限的关系查看

例如:要查看 scott 具有的角色,可查询 dba_role_privs;  
SQL> select * from dba_role_privs where grantee='SCOTT';  
 
//查询 orale 中所有的系统权限,一般是dba  
select * from system_privilege_map order by name;  
//查询 oracle 中所有对象权限,一般是dba  
select distinct privilege from dba_tab_privs;  
//查询 oracle 中所有的角色,一般是dba  
select * from dba_roles;  
//查询数据库的表空间  
select tablespace_name from dba_tablespaces;  
 
问题 1:如何查询一个角色包括的权限?  
       a.一个角色包含的系统权限  
         select * from dba_sys_privs where grantee='角色名'  

         select * from dba_sya_privs where grantee='COONNECT'; connect要大写
         另外也可以这样查看:  
         select * from role_sys_privs where role='角色名'  
       b.一个角色包含的对象权限  
         select * from dba_tab_privs where grantee='角色名'  
问题 2:oracle 究竟         多少种角色?  
SQL> select * from dba_roles;  
问题 3:如何查看某个用户,具  什么样的角色?  
select * from dba_role_privs where grantee='用户名'  


 显示当前用户可以访问的所有数据字典视图。
select * from dict where comments like '%grant%';  
 显示当前数据库的全称
select * from global_name;  
 
 其它说明 
数据字典记录          oracle 数据库的所有系统信息。通过查询数据字典可以取得以
下系统信息:比如  
1.对象定义情况  
2.对象 占用空间大小  
3.列信息  
4.约束信息  
...  
但是因为这些个信息,可以通过 pl/sql developer工具查询得到,所以这里我
就飘过。  

=======================


详解查看Oracle用户权限的七种方法






查看Oracle用户权限一般要通过一些实际操作,首先需要遍历所有用户,然后才是查看Oracle用户的权限等等操作。希望本文能给大家有所帮助。

1.查看所有用户:

<ol>
<li><span><span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> dba_users;  </span></span></li>
<li>
<span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> all_users;  </span>
</li>
<li>
<span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> user_users; </span>
</li>
</ol>

2.查看用户或角色系统权限(直接赋值给用户或角色的系统权限):

<ol>
<li><span><span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> dba_sys_privs;  </span></span></li>
<li>
<span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> user_sys_privs; </span>
</li>
</ol>

3.查看角色(只能查看登陆用户拥有的角色)所包含的权限

<ol><li><span><span>sql></span><span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> role_sys_privs; </span></span></li></ol>

4.查看用户对象权限:

<ol>
<li><span><span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> dba_tab_privs;  </span></span></li>
<li>
<span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> all_tab_privs;  </span>
</li>
<li>
<span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> user_tab_privs; </span>
</li>
</ol>

5.查看所有角色:

<ol><li><span><span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> dba_roles; </span></span></li></ol>

6.查看用户或角色所拥有的角色:

<ol>
<li><span><span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> dba_role_privs;  </span></span></li>
<li>
<span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> user_role_privs; </span>
</li>
</ol>

7.查看哪些用户有sysdba或sysoper系统权限(查询时需要相应权限)

<ol><li><span><span><strong><span>select</span></strong></span><span> * </span><span><strong><span>from</span></strong></span><span> V$PWFILE_USERS  
</span></span></li></ol>
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What are the different storage engines available in MySQL?What are the different storage engines available in MySQL?Apr 26, 2025 am 12:27 AM

MySQLoffersvariousstorageengines,eachsuitedfordifferentusecases:1)InnoDBisidealforapplicationsneedingACIDcomplianceandhighconcurrency,supportingtransactionsandforeignkeys.2)MyISAMisbestforread-heavyworkloads,lackingtransactionsupport.3)Memoryengineis

What are some common security vulnerabilities in MySQL?What are some common security vulnerabilities in MySQL?Apr 26, 2025 am 12:27 AM

Common security vulnerabilities in MySQL include SQL injection, weak passwords, improper permission configuration, and unupdated software. 1. SQL injection can be prevented by using preprocessing statements. 2. Weak passwords can be avoided by forcibly using strong password strategies. 3. Improper permission configuration can be resolved through regular review and adjustment of user permissions. 4. Unupdated software can be patched by regularly checking and updating the MySQL version.

How can you identify slow queries in MySQL?How can you identify slow queries in MySQL?Apr 26, 2025 am 12:15 AM

Identifying slow queries in MySQL can be achieved by enabling slow query logs and setting thresholds. 1. Enable slow query logs and set thresholds. 2. View and analyze slow query log files, and use tools such as mysqldumpslow or pt-query-digest for in-depth analysis. 3. Optimizing slow queries can be achieved through index optimization, query rewriting and avoiding the use of SELECT*.

How can you monitor MySQL server health and performance?How can you monitor MySQL server health and performance?Apr 26, 2025 am 12:15 AM

To monitor the health and performance of MySQL servers, you should pay attention to system health, performance metrics and query execution. 1) Monitor system health: Use top, htop or SHOWGLOBALSTATUS commands to view CPU, memory, disk I/O and network activities. 2) Track performance indicators: monitor key indicators such as query number per second, average query time and cache hit rate. 3) Ensure query execution optimization: Enable slow query logs, record and optimize queries whose execution time exceeds the set threshold.

Compare and contrast MySQL and MariaDB.Compare and contrast MySQL and MariaDB.Apr 26, 2025 am 12:08 AM

The main difference between MySQL and MariaDB is performance, functionality and license: 1. MySQL is developed by Oracle, and MariaDB is its fork. 2. MariaDB may perform better in high load environments. 3.MariaDB provides more storage engines and functions. 4.MySQL adopts a dual license, and MariaDB is completely open source. The existing infrastructure, performance requirements, functional requirements and license costs should be taken into account when choosing.

How does MySQL's licensing compare to other database systems?How does MySQL's licensing compare to other database systems?Apr 25, 2025 am 12:26 AM

MySQL uses a GPL license. 1) The GPL license allows the free use, modification and distribution of MySQL, but the modified distribution must comply with GPL. 2) Commercial licenses can avoid public modifications and are suitable for commercial applications that require confidentiality.

When would you choose InnoDB over MyISAM, and vice versa?When would you choose InnoDB over MyISAM, and vice versa?Apr 25, 2025 am 12:22 AM

The situations when choosing InnoDB instead of MyISAM include: 1) transaction support, 2) high concurrency environment, 3) high data consistency; conversely, the situation when choosing MyISAM includes: 1) mainly read operations, 2) no transaction support is required. InnoDB is suitable for applications that require high data consistency and transaction processing, such as e-commerce platforms, while MyISAM is suitable for read-intensive and transaction-free applications such as blog systems.

Explain the purpose of foreign keys in MySQL.Explain the purpose of foreign keys in MySQL.Apr 25, 2025 am 12:17 AM

In MySQL, the function of foreign keys is to establish the relationship between tables and ensure the consistency and integrity of the data. Foreign keys maintain the effectiveness of data through reference integrity checks and cascading operations. Pay attention to performance optimization and avoid common errors when using them.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools