Specail Character not accepted by DB

I want to add G:tech work i开发者_StackOverflow中文版n my table columm but my system is giving special characters are not allowed, We are using SQL server could you please help me who to insert this word in DB and why it is not taking specail characters??

In order to support special characters and multiple languages you should use nvarchar and nchar, at least in MSSQL.