How to get ONLY the Grand Total of Group Counts?

Question

This code works great for getting both a summary of individual Group counts and a Grand Total combined, but I only want the Grand Total of individual countries with no ROLLUP:

SELECT country, count( * ) 
FROM mytable
GROUP BY country
WITH ROLLUP
LIMIT 0 , 300

Researching a lot of examples, I was hoping this one would finally work but no joy (can't figure out what the MySQL error is in the code):

SELECT country,COUNT(*)  
   FROM mytable 
   GROUP BY country 
   COMPUTE Sum(Count(*))

Thanks for any assistance!

-stucko

Answer 1

If you want to get the number of rows returned by a GROUP BY you can do something like this

SELECT COUNT(*) FROM (
SELECT country, count( * ) 
FROM mytable
GROUP BY country

) a /*derived tables need an alias*/