Probleme bei MySQL Abfrage

[glkgereon]

Delphi-Quellcode:

function GetAmericanDate(Datum:String):String;
begin
  Result:=copy(Datum,7,4)+'.'+copy(Datum,4,2)+'.'+copy(Datum,1,2);
end;

function GetGermanDate(Datum:String):String;
begin
  Result:=copy(Datum,9,2)+'.'+copy(Datum,6,2)+'.'+copy(Datum,1,4);
end;

müsste funzen