SQL & PL/SQL

We would like to convert a String (Arabic / English) characters into Hexadecimal code points.

e.g.

رقم المرجع

0631 0642 0645 0020 0627 0644 0645 0631 062C 0639

http://www.rishida.net/tools/conversion/

I found similar function in C# to convert, can we have anything similar in Oracle :


public static string StrToHex(string input)
{
StringBuilder s = new StringBuilder();
foreach (char chr in input)
{
s.Append(Convert.ToString(chr, 16).PadLeft(4,'0'));
}
return s.ToString();
}

Please we need help on this...