I can't find the db-congif.php file mentions

I can't find the db-congif.php file mentions in the installation info for this plugin?

Wondering if you still need to add these lines...

add_global_table(‘system_faq’);
add_global_table(‘system_faq_cats’);
add_global_table(‘system_tickets’);
add_global_table(‘system_tickets_cats’);

... as described in the 'usage' tab for the plugin?

If so, where do I find the file please?

Thanks

Matt