NVARCHAR(MAX) two data types nvarchar(n) nchar and nvarchar nvarchar(1), nchar(1) http://msdn.microsoft.com/en-us/library/ms186939.aspx NVARCHAR data as UTF-16 http://msdn.microsoft.com/en-us/library/ms186939.aspx http://msdn.microsoft.com/en-us/library/ms186939.aspx https://msdn.microsoft.com/en-us/library/ms186939.aspx nvarchar nchar and nvarchar MS SQL Server NVARCHAR (MAX) nvarchar nchar and nvarchar (Transact-SQL) http://msdn.microsoft.com/en-us/library/ms186939.aspx nchar http://msdn.microsoft.com/en-us/library/ms186939.aspx MSDN: nchar, nvarchar http://msdn.microsoft.com/en-us/library/ms186939.aspx nvarchar the nvarchar section sysnames nchar and nvarchar http://msdn.microsoft.com/en-us/library/ms186939.aspx nvarchar(n) nchar and nvarchar (Transact-SQL) http://msdn.microsoft.com/en-us/library/ms186939.aspx