Manual:RenameDbPrefix.php

Details
renameDbPrefix.php file is a maint-scripts>Special:MyLanguage/Manual:Maintenance scripts|maintenance script to change the tables.

Run this script to after changing on a wiki. The wiki will have to get downtime to do this correctly.

Arguments
renameDbPrefix.php accepts two arguments.

Common error
It comes when either --old or --new value is incorrect.
 * Invalid prefix!