sql-zoo/q1.sql at master · michpara/sql-zoo · 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
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
#SELECT names

#Question 1
SELECT name
  FROM world
 WHERE name
  LIKE 'Y%';

#Question 2
SELECT name
  FROM world
 WHERE name
  LIKE '%y';

#Question 3
SELECT name
  FROM world
 WHERE name
  LIKE '%x%';

#Question 4
SELECT name
  FROM world
 WHERE name
  LIKE '%land';

#Question 5
SELECT name
  FROM world
 WHERE name
  LIKE 'C%'
   AND name
  LIKE '%ia';

#Question 6
SELECT name
  FROM world
 WHERE name
  LIKE '%oo%';

#Question 7
SELECT name
  FROM world
 WHERE name
  LIKE '%a%a%a%';

#Question 8
  SELECT name
    FROM world
   WHERE name
    LIKE '_t%'
ORDER BY name;

#Question 9
SELECT name
  FROM world
 WHERE name
  LIKE '%o__o%';

#Question 10
SELECT name
  FROM world
 WHERE name
  LIKE '____';

#Question 11
SELECT name
  FROM world
 WHERE name = capital;

#Question 12
SELECT name
  FROM world
 WHERE capital
  LIKE '%city';

#Question 13
SELECT capital, name
  FROM world
 WHERE capital
  LIKE CONCAT('%', name,'%');

#Question 14
SELECT capital, name
  FROM world
 WHERE capital
  LIKE CONCAT('%', name, '%')
   AND name != capital;

#Question 15
SELECT name, REPLACE(capital, name, '') AS extension
  FROM world
 WHERE capital
  LIKE CONCAT(name, '_%');