title: EntityFramework update or insert Chinese or non-English text
body: <p>Actually before i did not use framework or linq, just type in sql statement with Sqlcommand class, i type in <code>insert into table values(N'sample')</code>
  actually i donot know what is N, but it works for Chinese and other Language, otherwise, it will insert some question mark.</p>
  
  <p>But when i use EntityFramework,this kind of framework always insert some question mark, can i ask how to tackle the issue.</p>
  
  <p>N means Unicode?
  Can you give me one example that EntityFramework use that sort of thing?</p>