Give me the zip code where the average mean humidity is below 70 and at least 100 trips took place.
CREATE TABLE weather (zip_code VARCHAR, mean_humidity INTEGER); CREATE TABLE trip (zip_code VARCHAR, mean_humidity INTEGER)
[SQL] SELECT zip_code FROM weather GROUP BY zip_code HAVING AVG(mean_humidity) < 70 INTERSECT SELECT zip_code FROM trip GROUP BY zip_code HAVING COUNT(*) >= 100 [/SQL]