Home Database Mysql Tutorial Oracle对象与系统权限小测

Oracle对象与系统权限小测

Jun 07, 2016 pm 05:21 PM
oracle system

--系统权限表select * from dba_sys_privs p where p.privilege like

--系统权限表
select * from dba_sys_privs p where p.privilege like '%LINK%'
 
--对象权限表
select * from dba_tab_privs tp where tp.owner='SCOTT'

--在网上看到的:
--- ALL_COL_PRIVS 表示列上的授权,用户和PUBLIC是被授予者
 

select * from dba_col_privs
ALL_COL_PRIVS_MADE  表示列上的授权,用户是属主和被授予者
 

select * from all_col_privs_made

ALL_COL_RECD 表示列上的授权,用户和PUBLIC是被授予者

ALL_TAB_PRIVS 表示对象上的授权,用户是PUBLIC或被授予者或用户是属主
 

ALL_TAB_PRIVS_MADE  表示对象上的权限,用户是属主或授予者

ALL_TAB_PRIVS_RECD  表示对象上的权限, 用户是PUBLIC或被授予者

DBA_COL_PRIVS  数据库列上的所有授权

DBA_ROLE_PRIVS  显示已授予用户或其他角色的角色

DBA_SYS_PRIVS  已授予用户或角色的系统权限

DBA_TAB_PRIVS  数据库对象上的所有权限

ROLE_ROLE_PRIVS  显示已授予用户的角色

select * from role_role_privs;--role_role_privs;指授预此角色的角色
--测试上述 --经测试role_role_privs是授预此角色的角色
create role zxy_role;
create role zxy_role_1;
grant zxy_role_1 to zxy_role;
 

ROLE_SYS_PRIVS 显示通过角色授予用户的系统权限
select * from role_sys_privs;--显示角色所属的系统权限
--测试
grant create table to zxy_role;
 

ROLE_TAB_PRIVS 显示通过角色授予用户的对象权限
select * from ROLE_TAB_PRIVS;--显示角色所属的对象权限
--测试
grant select  on scott.emp to zxy_role;
 

SESSION_PRIVS  显示用户现在可利用的所有系统权限
select * from session_privs;--显示用户可以使用的系统权限
 

USER_COL_PRIVS 显示列上的权限,用户是属主、授予者或被授予者
select * from user_col_privs

USER_COL_PRIVS_MADE 显示列上已授予的权限,用户是属主或授予者

USER_COL_PRIVS_RECD  显示列上已授予的权限,用户是属主或被授予者

USER_ROLE_PRIVS  显示已授予给用户的所有角色
select * from dba_role_privs;--显示已经给用户授予的角色
--测试
grant zxy_role to scott;--显示给scott用户授予的角色

USER_SYS_PRIVS  显示已授予给用户的所有系统权限

USER_TAB_PRIVS 显示已授予给用户的所有对象权限

USER_TAB_PRIVS_MADE  显示已授予给其他用户的对象权限,用户是属主

select * from USER_TAB_PRIVS_MADE ma where ma.grantee='SCOTT';--显示授予者授予给被授予者的系统和对象权限
--测试
grant  execute on SYS.BLASTN_MATCH to scott;--对象权限
grant  select any table to scott;--系统权限 --经测无系统权限,,仅显示对象权限
 

USER_TAB_PRIVS_RECD 显示已授予给其他用户的对象权限,用户是被授予者'
select * from user_TAB_PRIVS_RECD m where table_name='T_ONLY';--显示
--测试
grant select on t_only to scott;

linux

Statement of this Website
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

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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Reduce the use of MySQL memory in Docker Reduce the use of MySQL memory in Docker Mar 04, 2025 pm 03:52 PM

This article explores optimizing MySQL memory usage in Docker. It discusses monitoring techniques (Docker stats, Performance Schema, external tools) and configuration strategies. These include Docker memory limits, swapping, and cgroups, alongside

How to solve the problem of mysql cannot open shared library How to solve the problem of mysql cannot open shared library Mar 04, 2025 pm 04:01 PM

This article addresses MySQL's "unable to open shared library" error. The issue stems from MySQL's inability to locate necessary shared libraries (.so/.dll files). Solutions involve verifying library installation via the system's package m

How do you alter a table in MySQL using the ALTER TABLE statement? How do you alter a table in MySQL using the ALTER TABLE statement? Mar 19, 2025 pm 03:51 PM

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

Run MySQl in Linux (with/without podman container with phpmyadmin) Run MySQl in Linux (with/without podman container with phpmyadmin) Mar 04, 2025 pm 03:54 PM

This article compares installing MySQL on Linux directly versus using Podman containers, with/without phpMyAdmin. It details installation steps for each method, emphasizing Podman's advantages in isolation, portability, and reproducibility, but also

What is SQLite? Comprehensive overview What is SQLite? Comprehensive overview Mar 04, 2025 pm 03:55 PM

This article provides a comprehensive overview of SQLite, a self-contained, serverless relational database. It details SQLite's advantages (simplicity, portability, ease of use) and disadvantages (concurrency limitations, scalability challenges). C

Running multiple MySQL versions on MacOS: A step-by-step guide Running multiple MySQL versions on MacOS: A step-by-step guide Mar 04, 2025 pm 03:49 PM

This guide demonstrates installing and managing multiple MySQL versions on macOS using Homebrew. It emphasizes using Homebrew to isolate installations, preventing conflicts. The article details installation, starting/stopping services, and best pra

How do I configure SSL/TLS encryption for MySQL connections? How do I configure SSL/TLS encryption for MySQL connections? Mar 18, 2025 pm 12:01 PM

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)? What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)? Mar 21, 2025 pm 06:28 PM

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

See all articles