使用PROC SQL查找SAS中给定字符串中最多一个字母的字符串

First some context. I am using proc sql in SAS, and need to fetch all the entries in a data set (with a couple of million entries) that have variable "Name" equal to (let's say) "Massachusetts". Of course, since the data was once manually entered by humans, close to all conceivable spelling errors occur ("Amssachusetts", "Kassachusetts" etc.).First some context. I am using proc sql in SAS,