Mysql is an open source database management system that is widely used in different web applications and larger enterprise-level systems. It can store large amounts of data securely, but you may run into problems if you forget your password or need to change it. In this article, we will introduce several methods to view Mysql password.
The first method is to use a Mysql client program, such as Mysql Workbench or Mysql command line client. After entering the Mysql command line, run the following command in the console:
SELECT User, Host, Password FROM mysql.user;
This command will return a user list and corresponding password, as well as the corresponding host name. If you know which username you are using, you can display only specific users. For example, to display the password of the user named "user1" and its host name, use the following command:
SELECT Password FROM mysql.user WHERE User='user1';
The second method is to view the configuration file of Mysql. By looking at the configuration file we can get where the passwords are logged. Use the following command to find the address of the Mysql configuration file:
sudo grep -r 'datadir' /etc/mysql/
This command will return a result similar to the following:
/etc/mysql/mysql.conf.d/mysqld.cnf:datadir=/var/lib/mysql
In this result, we need to look at the mysqld.cnf file because This file contains database configuration information. Use the following command to open the mysqld.cnf file for viewing:
sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf
Find the following string in the file:
plugin-load=auth_socket.so
Change it to the following string:
#plugin-load=auth_socket.so
Then save and close the file. Now we can access the Mysql console by using the following command on the command line:
mysql -u root -p
Then in the console we can view the user list and password using the following command:
SELECT User, Host, Password FROM mysql.user;
Third One way is to use an online decryption tool, but this is not recommended. Online decryption tools are very insecure. Using this method requires sending sensitive information to an untrusted server, which may lead to password leakage.
To sum up, if you forget your Mysql password, you can use the first or second method. If you're not sure which method is better for your situation, start with the first method. However, forgetting passwords is a common security problem. To protect your database, please remember to record passwords during daily use and keep them properly.
The above is the detailed content of How to check mysql password. For more information, please follow other related articles on the PHP Chinese website!

MySQL functions can be used for data processing and calculation. 1. Basic usage includes string processing, date calculation and mathematical operations. 2. Advanced usage involves combining multiple functions to implement complex operations. 3. Performance optimization requires avoiding the use of functions in the WHERE clause and using GROUPBY and temporary tables.

Efficient methods for batch inserting data in MySQL include: 1. Using INSERTINTO...VALUES syntax, 2. Using LOADDATAINFILE command, 3. Using transaction processing, 4. Adjust batch size, 5. Disable indexing, 6. Using INSERTIGNORE or INSERT...ONDUPLICATEKEYUPDATE, these methods can significantly improve database operation efficiency.

In MySQL, add fields using ALTERTABLEtable_nameADDCOLUMNnew_columnVARCHAR(255)AFTERexisting_column, delete fields using ALTERTABLEtable_nameDROPCOLUMNcolumn_to_drop. When adding fields, you need to specify a location to optimize query performance and data structure; before deleting fields, you need to confirm that the operation is irreversible; modifying table structure using online DDL, backup data, test environment, and low-load time periods is performance optimization and best practice.

Use the EXPLAIN command to analyze the execution plan of MySQL queries. 1. The EXPLAIN command displays the execution plan of the query to help find performance bottlenecks. 2. The execution plan includes fields such as id, select_type, table, type, possible_keys, key, key_len, ref, rows and Extra. 3. According to the execution plan, you can optimize queries by adding indexes, avoiding full table scans, optimizing JOIN operations, and using overlay indexes.

Subqueries can improve the efficiency of MySQL query. 1) Subquery simplifies complex query logic, such as filtering data and calculating aggregated values. 2) MySQL optimizer may convert subqueries to JOIN operations to improve performance. 3) Using EXISTS instead of IN can avoid multiple rows returning errors. 4) Optimization strategies include avoiding related subqueries, using EXISTS, index optimization, and avoiding subquery nesting.

Methods for configuring character sets and collations in MySQL include: 1. Setting the character sets and collations at the server level: SETNAMES'utf8'; SETCHARACTERSETutf8; SETCOLLATION_CONNECTION='utf8_general_ci'; 2. Create a database that uses specific character sets and collations: CREATEDATABASEexample_dbCHARACTERSETutf8COLLATEutf8_general_ci; 3. Specify character sets and collations when creating a table: CREATETABLEexample_table(idINT

To safely and thoroughly uninstall MySQL and clean all residual files, follow the following steps: 1. Stop MySQL service; 2. Uninstall MySQL packages; 3. Clean configuration files and data directories; 4. Verify that the uninstallation is thorough.

Renaming a database in MySQL requires indirect methods. The steps are as follows: 1. Create a new database; 2. Use mysqldump to export the old database; 3. Import the data into the new database; 4. Delete the old database.


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

SublimeText3 Linux new version
SublimeText3 Linux latest version

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

SublimeText3 Chinese version
Chinese version, very easy to use

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool
