What are the ids of stations that have latitude above 37.4 and never had bike availability below 7?
SELECT id FROM station WHERE lat  >  37.4 EXCEPT SELECT station_id FROM status GROUP BY station_id HAVING min(bikes_available)  <  7
SELECT id FROM station WHERE lat  >  37.4 EXCEPT SELECT station_id FROM status GROUP BY station_id HAVING min(bikes_available)  <  7
[{'id': 25}, {'id': 31}, {'id': 35}, {'id': 36}, {'id': 37}, {'id': 38}, {'id': 42}, {'id': 45}, {'id': 46}, {'id': 48}, {'id': 49}, {'id': 51}, {'id': 56}, {'id': 57}, {'id': 58}, {'id': 62}, {'id': 63}, {'id': 64}, {'id': 65}, {'id': 67}, {'id': 68}, {'id': 71}, {'id': 72}, {'id': 73}, {'id': 75}, {'id': 76}, {'id': 77}]