now if the database file does not exist, it will throw an error rather than simply crash
now if the database file does not exist, it will throw an error rather than simply crash

tempbottle/cppcms-skeleton,allan-simon/cppcms-skeleton,Tatoeba/cppcms-skeleton,allan-simon/cppcms-skeleton,tempbottle/cppcms-skeleton,allan-simon/cppcms-skeleton,tempbottle/cppcms-skeleton,tempbottle/cppcms-skeleton,Tatoeba/cppcms-skeleton,Tatoeba/cppcms-skeleton,allan-simon/cppcms-skeleton,Tatoeba/cppcms-skeleton