'Open your database here...
 
'Check for duplicated entry for the Username and Fullname entered by the user in the registration form!
     do while not rs.EOF
       'If Username already exist, alert user with QueryString!
        if rs("username")=Username then
            set rs=nothing
            set conn=nothing
            Response.Redirect("duplicatedUsername.asp")

       'If Fullname already exist, alert user with QueryString!
        Else If rs("fullname")=Fullname Then 
            set rs=nothing
            set conn=nothing
            Response.Redirect("duplicatedEmail.asp")
        End If
        rs.MoveNext
    loop