CREATE TABLE weather (zip_code VARCHAR(255), mean_humidity INTEGER); CREATE TABLE trip (zip_code VARCHAR(255), mean_humidity INTEGER)
Give me the zip code where the average mean humidity is below 70 and at least 100 trips took place.
    
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