What are the id and address of the shops which have a happy hour in May?
create table shop (address varchar, shop_id varchar, PRIMARY KEY (address)); create table happy_hour (shop_id varchar, PRIMARY KEY (shop_id))
select t1.address, t1.shop_id from shop as t1 join happy_hour as t2 on t1.shop_id = t2.shop_id where month = 'may'