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September 10, 18:38 MSK

SQL Exercises is intended for acquiring good practical experience, which is focused on data operation, namely on SQL DML. Certain exercises for beginners are provided on the site, they are supplied with the necessary reference source on SQL syntax with a great number of examples. Apart from them, 3 rating stages are suggested, they are aimed at testing of specialists and their certification. The source is absolutely free of charge, and the certificate purchase has a voluntary basis.
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SQL exercises

  • SELECT (learning stage)
  • SELECT (rating stages)
  • DML

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Poll

For what DBMS, besides SQL Server, you would like to have exercises on the site?

Oracle	56.9%
MySQL	27.8%
PostgreSQL	7.6%
Nothing is necessary any more	4%
Another	3.7%

Total Votes: 11686

Results of exercises voting

In this Section you can see the results of voting for the tasks of the second and the third stages (SELECT exercises) on 10-score scale.
In order to estimate the tasks (if you have solved these yet), click here.

No	Exercise #	Rank	Number of votes
1	253	10.0	11
2	130	10.0	9
3	154	10.0	6
4	155	10.0	5
5	147	10.0	3
6	165	10.0	3
7	168	10.0	3
8	167	10.0	2
9	169	10.0	1
10	146	9.9	14
11	149	9.9	9
12	152	9.8	12
13	164	9.7	6
14	100	9.6	18
15	162	9.6	11
16	156	9.6	11
17	151	9.6	10
18	116	9.5	43
19	158	9.5	4
20	138	9.4	36
21	161	9.4	5
22	160	9.4	5
23	87	9.3	77
24	137	9.3	32
25	150	9.3	10
26	153	9.3	9
27	163	9.3	6
28	72	9.2	99
29	86	9.2	21
30	141	9.1	15
31	148	9.1	13
32	166	9.1	9
33	123	8.9	50
34	106	8.9	44
35	71	8.9	40
36	145	8.9	16
37	110	8.8	48
38	140	8.8	15
39	143	8.8	12
40	159	8.8	4
41	126	8.7	41
42	142	8.7	22
43	125	8.6	37
44	76	8.5	32
45	134	8.5	32
46	92	8.4	39
47	111	8.4	35
48	96	8.3	81
49	107	8.3	36
50	128	8.3	35
51	114	8.3	34
52	118	8.3	33
53	132	8.3	13
54	68	8.2	108
55	89	8.2	57
56	103	8.2	39
57	139	8.2	22
58	61	8.1	57
59	98	8.1	45
60	105	8.1	44
61	85	8.1	33
62	63	8.0	99
63	74	8.0	73
64	124	8.0	28
65	67	8.0	23
66	144	8.0	12
67	54	7.9	195
68	66	7.9	62
69	65	7.9	45
70	84	7.9	38
71	70	7.8	72
72	109	7.8	35
73	115	7.8	26
74	77	7.7	56
75	81	7.7	55
76	136	7.7	23
77	157	7.7	3
78	69	7.6	64
79	75	7.6	54
80	122	7.6	34
81	129	7.6	25
82	99	7.6	15
83	58	7.5	105
84	41	7.4	58
85	97	7.4	35
86	135	7.4	20
87	82	7.4	17
88	53	7.3	162
89	37	7.3	120
90	49	7.3	113
91	90	7.3	44
92	121	7.3	41
93	59	7.3	36
94	113	7.3	30
95	62	7.2	113
96	57	7.2	92
97	95	7.2	38
98	104	7.2	33
99	112	7.2	28
100	64	7.1	87
101	36	7.1	72
102	45	7.1	49
103	119	7.1	32
104	60	7.0	117
105	40	7.0	74
106	79	7.0	46
107	108	7.0	36
108	101	7.0	36
109	93	7.0	34
110	91	7.0	31
111	127	7.0	25
112	48	6.9	79
113	78	6.9	21
114	33	6.8	100
115	51	6.8	43
116	73	6.8	36
117	117	6.8	27
118	55	6.7	134
119	42	6.7	73
120	38	6.6	64
121	80	6.6	41
122	251	6.6	15
123	252	6.6	10
124	52	6.5	144
125	50	6.5	116
126	39	6.5	64
127	83	6.5	47
128	35	6.4	104
129	34	6.4	79
130	94	6.4	31
131	133	6.4	22
132	32	6.3	81
133	131	6.3	20
134	88	6.2	61
135	44	6.2	57
136	102	6.2	37
137	47	6.1	112
138	43	6.1	86
139	56	6.0	117
140	46	5.9	97
141	120	5.7	29

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