I don't think that you can change the way the data is stored in the database. But if I'm not wrong I think what you mean is you want to sort it for admin purpose (like in phpMyAdmin). In that case you have to change the script manually.
Another question: how could we sort the records after adding them? Since when I tried to access them, it seems that which added first will display first. And I need to sort in another order. How could I do that? (I don't mean sorting in selecting, but the way the data is stored)