You would go to phpMyAdmin on your site or your Control Panel and find your access to phpMyAdmin or contact your hosting site and ask where it is hiding ... then find your database and browse your configuration table ...

As these things are added in order you can either go to the end of the file, the most likely place it will be when sorted on the configuration_id or do a search on a Like % ... % for:
DEFINE_PAGE

and you should see them all ...

I am surprised, however, that unless you have a typo on the one you just added that it could have been added as a duplicate ...

Also, you might do a search with Tools ... Developers Tool Kit ... in the bottom input box for:
DEFINE_PAGE_5_STATUS

and see what files are using it ... then do a search on:
DEFINE_PAGE_4_STATUS

to see what files are using that ... and make sure everyone is matching up in the right groups ...