mysql设置密码的方法总结(linux/windows)
本文章总结了在linux与windows服务器中别分怎么设置mysql密码的方法,有需要的同学可参考一下。
windows下mysql
(适用于管理员或者有全局权限的用户重设其它用户的密码)
进入命令行模式
代码如下 | 复制代码 |
mysql -u root mysql mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='name'; mysql> FLUSH PRIVILEGES; mysql> QUIT |
方法二:
(应用同上,只是方法不同)
代码如下 | 复制代码 |
mysql -u root mysql mysql> SET PASSWORD FOR name=PASSWORD('new password'); mysql> QUIT |
(以上两种方法我不常用,如果是管理员,我会用其它如phpmyadmin或者MYSQL-front 等工具来管理用户权限,比较直观又方便)
快速总结
代码如下 | 复制代码 |
a. ./mysqladmin -u root -p oldpassword newpasswd(记住这个命令是在/usr/local/mysql/bin中外部命令) b. SET PASSWORD FOR root=PASSWORD(’new password’);(对登录数据库后这种方式) c. UPDATE user SET password=PASSWORD(”new password”) WHERE user=’root’; (对登录数据库后这种方式) |
linux中mysql
MySQL如何设置root密码方法一:
最简单的方法,也是安装完mysql后,系统提示的方法。使用mysqladmin来完成。
代码如下 | 复制代码 |
shell> mysqladmin -u root password "newpwd" shell> mysqladmin -u root -h host_name password "newpwd"password |
后面的双引号不是必须的,不过如果密码包含空格或者一些特殊的符号,需要用引号。方法MySQL如何设置root密码二:利用mysql里面的SET PASSWORD命令来完成,注意必须使用PASSWORD()函数来加密设置的这个newpwd,否则直接='newpwd'不会生效。不过如果使用方法一用mysqladmin password设置密码或者用GRANT来设置,就不用使用PASSWORD()函数,因为它们已经自动调用了该函数。
代码如下 | 复制代码 |
shell> mysql -u root
mysql> SET PASSWORD FOR 'root'@'host_name' = PASSWORD('newpwd'); |
MySQL如何设置root密码方法三:
直接通过UPDATE user表来设置密码
代码如下 | 复制代码 |
shell> mysql -u root mysql> UPDATE mysql.user SET Password = PASSWORD('newpwd') -> WHERE User = 'root'; mysql> FLUSH PRIVILEGES; |
如果忘记mysql的root密码可以采取下面的步骤重新设置
1。kill掉所有mysql的进程
2。使用--skip-grant-tables的参数启动mysql
代码如下 | 复制代码 |
shell> mysqld_safe --skip-grant-tables & |
最后必杀技:
代码如下 | 复制代码 |
mysqladmin -u root "old password" "new password" |
解:以上有name的,请用你的用户名来替代.有new password请输入你想要设置的密码.

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

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.

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.

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 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.

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

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.

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.

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.
