I'm unclear on your task, but maybe this function will help:
(It is confusing to have "dato" as both a column name and an alias.)
> -----Original Message-----
> From: Karl-Arne Gjersøyen [mailto:karlarneg@stripped]
> Sent: Wednesday, July 24, 2013 7:02 AM
> To: MySQL Mailinglist
> Subject: From DATE_FORMAT and back to origin date in mysql date column
> SELECT DATE_FORMAT(dato, '%e/%c/%Y') AS dato FROM transportdokument WHERE
> dato >= '2013-07-20' AND dato <= '2013-07-24' GROUP BY dato DESC is
> working perfect in my PHP file.
> But I need to transfer the date back from my norwegian formatted date to
> the origin date format in WHERE dato >= '$standard_date_format';
> What need I do to fix this?
> Thanks for your time and help to learn me programming!