The directions below will provide simple instructions on changing the prefix to your WordPress blog’s MySQL database from wp_ to whatever you choose. Its a good idea to change this prefix to prevent zero-day SQL injection attacks from being performed against your WordPress installation since your database tables will be known to everyone if you use the default prefix. So follow the below directions to make the change that should only cause minimal downtime if the steps are followed properly.
- MySQL Database Backup:Use the CLI or backup your database from phpMyAdmin. If using phpMyAdmin use the export feature to export a SQL version of your database and download it to the PC you are working on. Your backup should be something similar to mydb_DATE.sql.