It may not be possible to fully sort it. You can sort it for
a,b, c,1,2 etc. Not any combination with one query I believe.
Another possibility is to put the first sort to a temporary
table (eg Sort for character), then take that table for the next set of
sort (sort for digit) and so on..
Please put this tektips.in . Somebody else will aso answer your
question.
If you find any direct solution then let me know..
Tom