Database: bike_1
Question: What are names and ids of all stations that have more than 14 bikes available on average or had bikes installed in December?
SQL: select t1.name ,  t1.id from station as t1 join status as t2 on t1.id  =  t2.station_id group by t2.station_id having avg(t2.bikes_available)  >  14 union select name ,  id from station where installation_date like "12/%"