Multiple COUNT() for multiple conditions in one query (MySQL)

Question

I have these queries :

SELECT COUNT(*) FROM t_table WHERE color = \'YELLOW\';
SELECT COUNT(*) FROM t_table WHERE color = \'BLUE\';
SELECT COUNT(*) FROM t_table W         


        

Answer 1

SELECT 'yellow' as color ,COUNT(*) FROM t_table WHERE color = 'YELLOW'
union
SELECT 'blue' , COUNT(*) FROM t_table WHERE color = 'BLUE'
union
SELECT 'red',COUNT(*) FROM t_table WHERE color = 'RED';

or

select color, count(*) from table where color in ('red', 'blue', 'yellow') group by 1