In Microsoft SQL Server, trying to put double byte characters into a string in the query will mess up the double byte strings unless there is an N front of the string, like this:
SELECT 'double-byte string' -- puts question marks if string is double-byte
SELECT N'double-byte string' -- works with double-byte strings
The question is: is there any way to make N the implicit default so I don't have to put N in front of every string?