Question: Show the company name with the number of gas station.
Schema: create table station_company (company_id varchar, PRIMARY KEY (company_id)); create table company (company varchar, company_id varchar, PRIMARY KEY (company))
SQL: select t2.company, count(*) from station_company as t1 join company as t2 on t1.company_id = t2.company_id group by t1.company_id