mysql user changes password, mysql changes password_PHP tutorial

mysql user changes password, mysql changes password

1: Use the SET PASSWORD command
to first log in to MySQL.
Format: mysql> set password for username@localhost = password('new password');

2: Use mysqladmin
Format: mysqladmin -u username- pOld password password New password

3: Use UPDATE to directly edit the user table
First log in to MySQL.
mysql> use mysql;
mysql> update user set password=password('123') where user='root' and host='localhost';
mysql> flush privileges;

4: When you forget the root password, you can do this
Take windows as an example:
1. Close the running MySQL service.
2. Open the DOS window and go to the mysqlbin directory.
3. Enter mysqld --skip-grant-tables and press Enter. --skip-grant-tables means to skip the authorization table authentication when starting the MySQL service.
4. Open another DOS window (because the DOS window just now cannot be moved) and go to the mysqlbin directory.
5. Enter mysql and press Enter. If successful, the MySQL prompt > will appear.
6. Connect to the permission database: use mysql;.
6. Change password: update user set password=password("123") where user="root"; (don’t forget to add the semicolon at the end).
7. Refresh privileges (required step): flush privileges;.
8. Quit.
9. Log out of the system, re-enter, and log in using the username root and the new password 123 you just set.

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