Results per letter query

Hi!

I'm trying to build a query to get if there is an occurrence for a field
for each alphabetical letter.
My first thought to know it was to do something like:

SELECT COUNT(field) FROM table WHERE UPPER( field ) LIKE UPPER( 'A%' )
LIMIT 1;
SELECT COUNT(field) FROM table WHERE UPPER( field ) LIKE UPPER( 'B%' )
LIMIT 1;
SELECT COUNT(field) FROM table WHERE UPPER( field ) LIKE UPPER( 'C%' )
LIMIT 1;
...
and so on...

Is there any way to do it in only one query??

Thank you in advance!