Write a SQL statement to measure or count the quantity of drugs ordered by state code.

Write a SQL statement to measure or count the quantity of drugs ordered by brand id$.$

Write a SQL statement to measure or count the quantity of drugs ordered by region name.

Drug Refill is defined as $($refill$\_$limit $-$ refill$\_$count$).$ Write a SQL statement to measure the drug refill by state code ID DRUG NAME REGION NAME refil limit refil quanity

$12958$ Heart Clear Central $1235$

$12958$ Heart Clear Central $4078$

$12958$ Heart Clear North $578$

$13333$ Lung Guard North $10123$

$13333$ Lung Guard $34123$

$13333$ Lung Guard $1012$

$15555$ Lung Work $299$

$15555$ Lung Work $244$

$15555$ Lung Work $1734$

$33333$ Nervous Help $1011$

$33333$ Nervous Help $55441$