Kjell,

> It's not just a matter of differentiating between 16 bit words and
> Unicode codepoints.
>
> For "DÄR" with Ä coded as A + diacritic composite ("DA¨R"), what exactly
> does substring(MyDÄRstring, 3, 1) mean? Is it the diacritic '¨' or the
> 'R'?

Neither!

Since SUBSTRING is a _string_ function, the correct answer would be "Ä"


Sean