sharing-github/drillSQL3 at master · fcue/sharing-github · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
#1
SELECT
	t.duration,
	DATE(t.start_date),
	t.trip_id
FROM
	trips t
JOIN
	(SELECT
		events,
		date
	FROM
		weather
	WHERE events LIKE 'Rain%') AS rainydays
ON
	DATE(rainydays.date) = DATE(t.start_date)
ORDER BY duration DESC;

#2

SELECT
	docks_available,
	station_id,
	COUNT(*)
FROM
	status
WHERE docks_available = 0
GROUP BY 1, 2;


#3
SELECT
	stations.dockcount,
	trips.start_station,
	COUNT (*)
FROM
	stations
JOIN
	trips
ON stations.name=trips.start_station
GROUP BY 1,2
ORDER by dockcount DESC


#4

SELECT
	MAX(t.duration),
	DATE(t.start_date)
FROM
	trips t
JOIN
	(SELECT
		events,
		date
	FROM
		weather
	WHERE events LIKE 'Rain%') AS rainydays
ON
	DATE(rainydays.date) = DATE(t.start_date)
GROUP BY DATE(t.start_date)
ORDER BY DATE(t.start_date) ASC;