In the daily use of computers, it is inevitable that you will encounter the situation of forgetting your password. For example, when using a Mac system, we often need to use a MySQL database. But what if you forget your password for that database? Below I will introduce you in detail how to solve the problem of forgotten Mac MySQL password.
First, we need to determine the MySQL installation path on Mac. Run the following command in the terminal:
which mysql
After executing the above command, if the terminal outputs the following similar information:
/usr/local/bin/mysql
, it means that the MySQL installation path is /usr/local/bin/mysql
.
Next, enter the following command in the terminal to restart the MySQL service:
sudo /usr/local/mysql/support-files/mysql.server restart
After executing this command, the system will prompt you to enter the administrator password. Just enter your administrator password.
When the MySQL service restarts successfully, we can try to reset the password in the following way:
sudo /usr/local/mysql/bin/mysql -u root
Here is a little tip: If you cannot access MySQL, please add the port to the above command Number:
sudo /usr/local/mysql/bin/mysql -u root -h 127.0.0.1 -P 端口号
If you don’t know the port number, you can find it in /etc/my.cnf
or /etc/mysql/my.cnf
.
After you enter the above command, the system will prompt you to enter your password. Since we have forgotten the password, we can do this in the following ways:
- Enter a blank password to try to log in, or try to log in with an old password.
If neither of these two methods is successful, you can continue with the following operations.
- Enter the MySQL database through the following command:
use mysql;
- Clear the password of the existing user:
update user set password=null where user='root';
- Settings New password:
update user set authentication_string=password('new_password') where user='root';
Replace "new_password" with the new password you want to set.
- Enter the following command for the password change to take effect:
flush privileges;
After completing the above steps, you should be able to regain access to the MySQL database and log in with the new password. If you still cannot access the database, you can try restarting the system and performing the above operations again.
If you want to avoid the problem of forgetting MySQL passwords, it is recommended that you create a note or notepad to record all passwords, or use a password manager to save passwords. This can effectively avoid the problem of forgetting passwords and better protect your personal information.
In short, when we encounter the problem of forgetting the Mac MySQL password, we should try to reset the password according to the above steps. During the processing, we should operate with caution to ensure that no unnecessary impact is caused to the entire system.
The above is the detailed content of mac mysql password forgotten. For more information, please follow other related articles on the PHP Chinese website!

Stored procedures are precompiled SQL statements in MySQL for improving performance and simplifying complex operations. 1. Improve performance: After the first compilation, subsequent calls do not need to be recompiled. 2. Improve security: Restrict data table access through permission control. 3. Simplify complex operations: combine multiple SQL statements to simplify application layer logic.

The working principle of MySQL query cache is to store the results of SELECT query, and when the same query is executed again, the cached results are directly returned. 1) Query cache improves database reading performance and finds cached results through hash values. 2) Simple configuration, set query_cache_type and query_cache_size in MySQL configuration file. 3) Use the SQL_NO_CACHE keyword to disable the cache of specific queries. 4) In high-frequency update environments, query cache may cause performance bottlenecks and needs to be optimized for use through monitoring and adjustment of parameters.

The reasons why MySQL is widely used in various projects include: 1. High performance and scalability, supporting multiple storage engines; 2. Easy to use and maintain, simple configuration and rich tools; 3. Rich ecosystem, attracting a large number of community and third-party tool support; 4. Cross-platform support, suitable for multiple operating systems.

The steps for upgrading MySQL database include: 1. Backup the database, 2. Stop the current MySQL service, 3. Install the new version of MySQL, 4. Start the new version of MySQL service, 5. Recover the database. Compatibility issues are required during the upgrade process, and advanced tools such as PerconaToolkit can be used for testing and optimization.

MySQL backup policies include logical backup, physical backup, incremental backup, replication-based backup, and cloud backup. 1. Logical backup uses mysqldump to export database structure and data, which is suitable for small databases and version migrations. 2. Physical backups are fast and comprehensive by copying data files, but require database consistency. 3. Incremental backup uses binary logging to record changes, which is suitable for large databases. 4. Replication-based backup reduces the impact on the production system by backing up from the server. 5. Cloud backups such as AmazonRDS provide automation solutions, but costs and control need to be considered. When selecting a policy, database size, downtime tolerance, recovery time, and recovery point goals should be considered.

MySQLclusteringenhancesdatabaserobustnessandscalabilitybydistributingdataacrossmultiplenodes.ItusestheNDBenginefordatareplicationandfaulttolerance,ensuringhighavailability.Setupinvolvesconfiguringmanagement,data,andSQLnodes,withcarefulmonitoringandpe

Optimizing database schema design in MySQL can improve performance through the following steps: 1. Index optimization: Create indexes on common query columns, balancing the overhead of query and inserting updates. 2. Table structure optimization: Reduce data redundancy through normalization or anti-normalization and improve access efficiency. 3. Data type selection: Use appropriate data types, such as INT instead of VARCHAR, to reduce storage space. 4. Partitioning and sub-table: For large data volumes, use partitioning and sub-table to disperse data to improve query and maintenance efficiency.

TooptimizeMySQLperformance,followthesesteps:1)Implementproperindexingtospeedupqueries,2)UseEXPLAINtoanalyzeandoptimizequeryperformance,3)Adjustserverconfigurationsettingslikeinnodb_buffer_pool_sizeandmax_connections,4)Usepartitioningforlargetablestoi


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

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

Hot Article

Hot Tools

Dreamweaver CS6
Visual web development tools

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

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.
