[Koha] Restoring the default Marc Framework

Hi all I altered the default marc Framework. I understand that it's not a good idea. How can I restore the original Default MARC Framework (in my case the one at /usr/share/koha/intranet/cgi-bin/installer/data/mysql/de-DE/marcflavour/marc21/mandatory/marc21_framework_DEFAULT.sql Does simply running mysql -u koha_<instancename> -p koha_<instancename> < marc21_framework_DEFAULT.sql do the job? Or is this dangerous? cu Beda