SQL Prefix issue N with variable

Question

DECLARE @XML_VC_8 XML;
DECLARE @string NVARCHAR(MAX);
DECLARE @PreFix NVACHAR(MAX);

SET @PreFix =\'N\' 
SET @XML_VC_8 = \'

        

Answer 1

removing the N variable and changing encoding to utf-16, this should get your characters

Declare @XML_VC_8 XML;
Declare @string nvarchar(max);


set @XML_VC_8 = N'<?xml version="1.0" encoding="utf-16"?><test>fdff مرحبا</test>';
set @string=Convert(nvarchar(max),@XML_VC_8);
print @string

Answer 2

These work fine!

DECLARE @XML_VC_8 XML;
SET @XML_VC_8 = N'<?xml version="1.0" encoding="utf-16"?><test>fdff مرحبا</test>';
SELECT @XML_VC_8