How to save "F" this symbol in database using c#

Question

Hai,

 

I want to save this symbol  "Φ" in database table . I used to save this symbol asusual in backend but it was save "f" like this . 

 

I want to save "Φ" this symbol and as well as retrieve this symbol. What query I have to use for save this symbol.

 

Anybody help this question.

 

Thanks in advance.