select count(*) as total
from pizza_runner.x_csv as xc
where no <> 0
select round(avg("no"),2), --count without excluding zero
round(avg(nullif("no",0)),2) as r-- count with exluding zero
from pizza_runner.x_csv as xc
select count(*) as total
from pizza_runner.x_csv as xc
where no <> 0
select round(avg("no"),2), --count without excluding zero
round(avg(nullif("no",0)),2) as r-- count with exluding zero
from pizza_runner.x_csv as xc