How to change user password on mysql

 How to change user password on MySQL

Mysql change the user password using the following method:

1. Open the bash shell and connect to the server as the root user
2. mysql -u root -h localhost -p
3. Run command:
4. ALTER USER 'userName'@'localhost' IDENTIFIED BY 'New-Password-Here';

Please note that use mysql.exe on MS-Windows host as follows (first change the directory where mysql.exe is located [example: “C:\Program Files\mysql\mysql-5.0.77-win32\bin”]. Let us see examples and syntax in detail.

mysql SQL command to change a user password

To create a new MySQL user account, run the following command:

CREATE USER 'newuser'@'localhost' IDENTIFIED BY 'user_password';

Delete MySQL user account 

To delete a user account, use the following command:

mysql> DROP USER 'database_user@'localhost';

If you try to delete a user account that doesn’t exist an error will occur.

ERROR 1396 (HY000): Operation DROP USER failed for 'database_user'@'localhost'

Same as when working with the databases to avoid the error you can use:
mysql> DROP USER IF EXISTS 'database_user'@'localhost';

Query OK, 0 rows affected, 1 warning (0.00 sec)

Login as root from the shell:
$ mysql -u root -p

Switch to mysql database (type command at mysql> prompt, do not include string “mysql>”):
mysql> use mysql;
The syntax is as follows for mysql database server version 5.7.5 or older:

SET PASSWORD FOR 'user-name-here'@'hostname' = PASSWORD('new-password');

For mysql database server version 5.7.6 or newer use the following syntax:

ALTER USER 'user'@'hostname' IDENTIFIED BY 'newPass';

You can also use the following SQL syntax:

UPDATE mysql.user SET Password=PASSWORD('new-password-here') WHERE USER='user-name-here' AND Host='host-name-here';

In this example, change a password for a user called tom:

SET PASSWORD FOR 'tom'@'localhost' = PASSWORD('foobar');

OR

UPDATE mysql.user SET Password=PASSWORD('foobar') WHERE USER='tom' AND Host='localhost';

Sample outputs:

Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

Feel free to replace the values for “tom” (user), “localhost” (hostname), and “foobar” (password) as per your requirements. Finally, type the following command to reload privileges:

FLUSH PRIVILEGES;

Sample outputs:

Query OK, 0 rows affected (0.00 sec)

To exit from mysql> prompt, enter:

quit;

User or you can test new password using the following shell syntax:
mysql -u tom -p
When prompted enter the new password you set earlier for tom user.

Sample session

Fig.01: Mysql Updating / Changing password (click to enlarge)