Fixing MySQL Error: 'sql_mode' Variable Cannot be Set to 'NO_AUTO_CREATE_USER'

If you're encountering the error message "sql_mode' variable cannot be set to 'NO_AUTO_CREATE_USER'" in MySQL, it's likely due to changes in the default configuration of MySQL versions 5.7.6 and above.

To fix this error, you'll need to modify the sql_mode variable in your MySQL configuration. Here's how:

1. Locate your MySQL configuration file

The location of your MySQL configuration file will depend on your operating system and installation method. Common locations include:

• /etc/mysql/my.cnf
• /etc/my.cnf
• ~/my.cnf
• Windows: C:Program FilesMySQLMySQL Server {version}my.ini

If you're unsure where your configuration file is located, you can check the MySQL documentation for your specific installation method.

2. Edit the sql_mode variable

Once you've located your configuration file, open it in a text editor and find the line that sets the sql_mode variable. It may look something like this:

[mysqld]
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

To fix the error, you need to remove the "NO_AUTO_CREATE_USER" value from the sql_mode variable. The line should look like this:

[mysqld]
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

3. Restart MySQL

Save your changes to the configuration file, and then restart the MySQL service so that the changes take effect. The process for restarting MySQL will depend on your operating system and installation method. Common methods include:

• Linux: sudo systemctl restart mysql
• Windows: Use the Services tool or restart the MySQL service from the command line.

After restarting MySQL, the "sql_mode' variable cannot be set to 'NO_AUTO_CREATE_USER'" error should be resolved. If you continue to encounter issues, consult the MySQL documentation or seek assistance from a qualified MySQL expert.