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

I think this can also works for you

select count(*) as anc,(select count(*) from Patient where sex='F')as 
        patientF,(select count(*) from Patient where sex='M') as patientM from anc

you can also even select and count related tables like this

select count(*) as anc,(select count(*) from Patient where 
    Patient.Id=anc.PatientId)as patientF,(select count(*) from Patient where
    sex='M') as patientM from anc