MySQL | Change User Password

Changing a user's password in MySQL is a crucial administrative task, especially for security reasons. Here's how you can change a user's password in MySQL:

Using the `ALTER USER` statement (MySQL 5.7.6 and newer):

If you're using MySQL version 5.7.6 or newer, you can use the ALTER USER statement:

ALTER USER 'username'@'hostname' IDENTIFIED BY 'new_password';

Replace username, hostname, and new_password with the appropriate values.

Using the `SET PASSWORD` statement:

Another way to change the password is using the SET PASSWORD statement:

SET PASSWORD FOR 'username'@'hostname' = PASSWORD('new_password');

However, note that the PASSWORD() function has been deprecated as of MySQL 5.7.5 and removed in MySQL 8.0. If you're using MySQL 8.0 or later, the statement would be:

SET PASSWORD FOR 'username'@'hostname' = 'new_password';

After Changing the Password:

Flush Privileges: Whenever you modify user privileges, it's a good practice to run the FLUSH PRIVILEGES command, although it's not strictly required when changing the password using the methods above. This command tells the server to reload the grant tables, ensuring the changes take effect.
```
FLUSH PRIVILEGES;
```
Strong Passwords: Always choose a strong password. MySQL provides a VALIDATE_PASSWORD plugin which can enforce password policies.
Secure Connection: When setting or changing passwords, ensure you're connected securely to prevent eavesdropping. For instance, if you're connecting via a network or the internet, using SSL is a good idea.

Important Notes:

Remember to replace placeholders (username, hostname, and new_password) with actual values.
Ensure you have the necessary privileges to change the password. Typically, you'd need the UPDATE privilege on the mysql database or the global CREATE USER privilege or both.

Always be cautious when altering user passwords, and ensure that the changes you make don't lock anyone out unintentionally or compromise the security of your MySQL installation.

ALTER USER Statement in MySQL for Password Change:
- Change the password using the ALTER USER statement.
```
ALTER USER 'username'@'localhost' IDENTIFIED BY 'new_password';
```
How to Modify User Password in MySQL:
- Modify the password for a specific user.
```
SET PASSWORD FOR 'username'@'localhost' = PASSWORD('new_password');
```
Setting a New Password for a MySQL User:
- Use the ALTER USER statement to set a new password.
```
ALTER USER 'username'@'localhost' IDENTIFIED BY 'new_password';
```

Changing MySQL User Password using SQL Query:

Update the user's password using an UPDATE statement.

UPDATE mysql.user SET authentication_string = PASSWORD('new_password') WHERE User = 'username' AND Host = 'localhost';
FLUSH PRIVILEGES;

MySQL UPDATE Statement for Changing User Password:

Directly use the UPDATE statement to change the password.

UPDATE mysql.user SET authentication_string = PASSWORD('new_password') WHERE User = 'username' AND Host = 'localhost';
FLUSH PRIVILEGES;

ALTER USER Identified By Command in MySQL:
- Use the ALTER USER statement with IDENTIFIED BY to change the password.
```
ALTER USER 'username'@'localhost' IDENTIFIED BY 'new_password';
```
Resetting Password for a User in MySQL:
- Reset the password to a known value.
```
SET PASSWORD FOR 'username'@'localhost' = PASSWORD('default_password');
```

MySQL | Change User Password

Using the ALTER USER statement (MySQL 5.7.6 and newer):

Using the SET PASSWORD statement:

After Changing the Password:

Important Notes:

Using the `ALTER USER` statement (MySQL 5.7.6 and newer):

Using the `SET PASSWORD` statement: