Home Database Mysql Tutorial JC-MySQL权限详解

JC-MySQL权限详解

Jun 07, 2016 pm 05:41 PM
mysql mysql permissions

MySQL数据库已经应用到很多互联网公司,mysql权限管理非常重要,合理规划好mysql数据库权限,对数据库的安全和使用是非常有好处的.一个好的规范和习惯,做任何事

 

MySQL数据库已经应用到很多互联网公司,mysql权限管理非常重要,合理规划好mysql数据库权限,对数据库的安全和使用是非常有好处的.一个好的规范和习惯,做任何事也不会出现大问题.

 

下面是mysql权限规划授权的语句:

 

授权jc用户,查询、插入、更新、删除 本机testdb数据库中所有表数据的权利的授权方法如下:

grant select on testdb.* to jc@’localhost’

grant insert on testdb.* to jc@’localhost’

grant update on testdb.* to jc@’localhost’

grant delete on testdb.* to jc@’localhost’


授权jc用户,创建、修改、删除 MySQL 数据表结构权限

grant create on testdb.* to jc@’localhost’;

grant alter  on testdb.* to jc@’localhost’;

grant drop  on testdb.* to jc@’localhost’;


授权jc用户,操作MySQL外键权限

grant references on testdb.* to jc@’localhost’;


授权jc用户操作MySQL临时表权限

grant create temporary tables on testdb.* to jc@'localhost’


授权jc用户操作MySQL索引权限

grant index on testdb.* to jc@'localhost’;


授权jc用户操作MySQL视图,网站空间,查看视图源代码权限

grant create view on testdb.* to jc@’localhost’;

grant show   view on testdb.* to jc@’localhost’;


授权jc用户管理某个MySQL数据库的权限:

grant all privileges on testdb to jc@’localhost’;


授权jc用户管理MySQL中所有数据库的权限:

grant all on *.* to jc@’localhost';



授权jc用户权限分别可以作用在多个层次上。

1. grant 作用在整个 MySQL 服务器上:

grant select on *.* to jc@localhost; — jc可以查询 MySQL 中所有数据库中的表。

grant all    on *.* to jc@localhost; — jc可以管理 MySQL 中的所有数据库

2. grant 作用在单个数据库上:

grant select on testdb.* to jc@localhost; — jc可以查询 testdb 中的表。

3. grant 作用在单个数据表上:

grant select, insert, update, delete on testdb.orders to jc@localhost;

4. grant 作用在表中的列上:

grant select(id, se, rank) on testdb.apache_log to jc@localhost;

5. grant 作用在存储过程、函数上:

grant execute on procedure testdb.pr_add to ‘jc’@'localhost’

grant execute on function testdb.fn_add to ‘jc’@'localhost’

 

 

查看 MySQL 用户权限

查看当前用户(自己)权限:

show grants;

查看其他 MySQL 用户权限:

show grants for dba@localhost;

 

 

撤销已经赋予给 MySQL 用户权限的权限。

revoke 跟 grant 的语法差不多,只需要把关键字 “to” 换成 “from” 即可:

grant all on *.* to   jc@localhost;
revoke all on *.* from jc@localhost;

 

 

权限授权语法和列表:

GRANT 语法: 

GRANT privileges (columns)

    ON what

    TO user IDENTIFIED BY "password"

    WITH GRANT OPTION

 

权限列表:

 

 

 

 

本文出自 “IMySQL” 博客,请务必保留此出处

,香港服务器,服务器空间
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
1 months 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)

PHP's big data structure processing skills PHP's big data structure processing skills May 08, 2024 am 10:24 AM

Big data structure processing skills: Chunking: Break down the data set and process it in chunks to reduce memory consumption. Generator: Generate data items one by one without loading the entire data set, suitable for unlimited data sets. Streaming: Read files or query results line by line, suitable for large files or remote data. External storage: For very large data sets, store the data in a database or NoSQL.

How to optimize MySQL query performance in PHP? How to optimize MySQL query performance in PHP? Jun 03, 2024 pm 08:11 PM

MySQL query performance can be optimized by building indexes that reduce lookup time from linear complexity to logarithmic complexity. Use PreparedStatements to prevent SQL injection and improve query performance. Limit query results and reduce the amount of data processed by the server. Optimize join queries, including using appropriate join types, creating indexes, and considering using subqueries. Analyze queries to identify bottlenecks; use caching to reduce database load; optimize PHP code to minimize overhead.

How to use MySQL backup and restore in PHP? How to use MySQL backup and restore in PHP? Jun 03, 2024 pm 12:19 PM

Backing up and restoring a MySQL database in PHP can be achieved by following these steps: Back up the database: Use the mysqldump command to dump the database into a SQL file. Restore database: Use the mysql command to restore the database from SQL files.

How to insert data into a MySQL table using PHP? How to insert data into a MySQL table using PHP? Jun 02, 2024 pm 02:26 PM

How to insert data into MySQL table? Connect to the database: Use mysqli to establish a connection to the database. Prepare the SQL query: Write an INSERT statement to specify the columns and values ​​to be inserted. Execute query: Use the query() method to execute the insertion query. If successful, a confirmation message will be output.

How to fix mysql_native_password not loaded errors on MySQL 8.4 How to fix mysql_native_password not loaded errors on MySQL 8.4 Dec 09, 2024 am 11:42 AM

One of the major changes introduced in MySQL 8.4 (the latest LTS release as of 2024) is that the "MySQL Native Password" plugin is no longer enabled by default. Further, MySQL 9.0 removes this plugin completely. This change affects PHP and other app

How to use MySQL stored procedures in PHP? How to use MySQL stored procedures in PHP? Jun 02, 2024 pm 02:13 PM

To use MySQL stored procedures in PHP: Use PDO or the MySQLi extension to connect to a MySQL database. Prepare the statement to call the stored procedure. Execute the stored procedure. Process the result set (if the stored procedure returns results). Close the database connection.

How to create a MySQL table using PHP? How to create a MySQL table using PHP? Jun 04, 2024 pm 01:57 PM

Creating a MySQL table using PHP requires the following steps: Connect to the database. Create the database if it does not exist. Select a database. Create table. Execute the query. Close the connection.

The difference between oracle database and mysql The difference between oracle database and mysql May 10, 2024 am 01:54 AM

Oracle database and MySQL are both databases based on the relational model, but Oracle is superior in terms of compatibility, scalability, data types and security; while MySQL focuses on speed and flexibility and is more suitable for small to medium-sized data sets. . ① Oracle provides a wide range of data types, ② provides advanced security features, ③ is suitable for enterprise-level applications; ① MySQL supports NoSQL data types, ② has fewer security measures, and ③ is suitable for small to medium-sized applications.

See all articles