October 22, 19:53 MSK guest

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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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	210	10.0	11
2	228	10.0	11
3	194	10.0	11
4	233	10.0	9
5	207	10.0	9
6	214	10.0	7
7	232	10.0	5
8	220	10.0	4
9	231	10.0	4
10	155	9.9	19
11	154	9.9	18
12	167	9.9	15
13	219	9.9	9
14	216	9.9	8
15	223	9.9	8
16	225	9.9	7
17	165	9.8	19
18	172	9.8	16
19	188	9.8	12
20	211	9.8	9
21	255	9.8	9
22	222	9.8	9
23	230	9.8	5
24	146	9.7	34
25	164	9.7	22
26	147	9.7	20
27	181	9.7	10
28	236	9.7	9
29	229	9.7	6
30	234	9.7	3
31	119	9.6	62
32	166	9.6	32
33	152	9.6	28
34	180	9.6	24
35	160	9.6	17
36	157	9.6	15
37	213	9.6	15
38	163	9.6	14
39	218	9.6	8
40	235	9.6	5
41	102	9.5	90
42	168	9.5	25
43	176	9.5	21
44	259	9.5	13
45	191	9.5	11
46	224	9.5	8
47	237	9.5	2
48	100	9.4	131
49	116	9.4	124
50	95	9.4	44
51	203	9.4	25
52	198	9.4	16
53	304	9.4	16
54	196	9.4	15
55	257	9.4	13
56	87	9.3	184
57	101	9.3	120
58	93	9.3	76
59	148	9.3	36
60	162	9.3	34
61	174	9.3	32
62	173	9.3	28
63	32	9.3	26
64	149	9.3	22
65	153	9.3	21
66	161	9.3	18
67	171	9.3	15
68	215	9.3	13
69	200	9.3	13
70	226	9.3	6
71	72	9.2	283
72	137	9.2	70
73	138	9.2	67
74	192	9.2	26
75	186	9.2	24
76	88	9.2	17
77	179	9.2	12
78	217	9.2	5
79	91	9.1	96
80	135	9.1	38
81	156	9.1	30
82	170	9.1	29
83	195	9.1	16
84	202	9.1	16
85	183	9.1	15
86	178	9.1	15
87	305	9.1	15
88	206	9.1	12
89	80	9.0	143
90	123	9.0	119
91	69	9.0	67
92	120	9.0	56
93	142	9.0	49
94	141	9.0	36
95	256	9.0	21
96	303	9.0	5
97	110	8.9	122
98	108	8.9	117
99	130	8.9	62
100	140	8.9	42
101	115	8.9	39
102	158	8.9	23
103	151	8.9	21
104	197	8.9	20
105	184	8.9	20
106	253	8.9	20
107	190	8.9	14
108	212	8.9	10
109	221	8.9	10
110	205	8.9	10
111	76	8.8	189
112	96	8.8	170
113	106	8.8	128
114	143	8.8	31
115	254	8.8	27
116	201	8.8	24
117	187	8.8	21
118	208	8.8	12
119	35	8.7	185
120	77	8.7	135
121	125	8.7	95
122	5	8.7	52
123	145	8.7	34
124	112	8.7	25
125	301	8.7	22
126	52	8.6	158
127	83	8.6	156
128	86	8.6	123
129	126	8.6	93
130	134	8.6	73
131	113	8.6	61
132	105	8.6	58
133	131	8.6	46
134	150	8.6	22
135	189	8.6	12
136	61	8.5	333
137	66	8.5	258
138	85	8.5	150
139	92	8.5	128
140	114	8.5	100
141	177	8.5	26
142	169	8.5	22
143	175	8.5	22
144	204	8.5	18
145	307	8.5	11
146	23	8.4	391
147	71	8.4	197
148	43	8.4	181
149	128	8.4	76
150	104	8.4	64
151	57	8.4	60
152	252	8.4	23
153	199	8.4	14
154	59	8.3	215
155	67	8.3	213
156	74	8.3	211
157	81	8.3	174
158	51	8.3	163
159	84	8.3	160
160	111	8.3	105
161	94	8.3	97
162	133	8.3	49
163	139	8.3	46
164	193	8.3	15
165	306	8.3	8
166	238	8.3	4
167	54	8.2	481
168	17	8.2	337
169	47	8.2	306
170	58	8.2	231
171	82	8.2	151
172	98	8.2	138
173	124	8.2	91
174	99	8.2	86
175	159	8.2	14
176	41	8.1	370
177	10	8.1	230
178	64	8.1	200
179	45	8.1	137
180	68	8.1	122
181	118	8.1	93
182	127	8.1	30
183	182	8.1	17
184	9	8.0	433
185	6	8.0	393
186	20	8.0	353
187	36	8.0	327
188	21	8.0	289
189	56	8.0	288
190	37	8.0	273
191	62	8.0	237
192	107	8.0	106
193	109	8.0	101
194	90	8.0	89
195	251	8.0	29
196	209	8.0	15
197	30	7.9	403
198	49	7.9	385
199	34	7.9	370
200	60	7.9	349
201	31	7.9	271
202	44	7.9	243
203	70	7.9	227
204	89	7.9	163
205	7	7.9	77
206	185	7.9	26
207	79	7.8	161
208	55	7.8	126
209	302	7.8	12
210	8	7.7	396
211	53	7.7	392
212	18	7.7	371
213	26	7.7	368
214	33	7.7	357
215	42	7.7	332
216	65	7.7	262
217	117	7.7	89
218	260	7.7	37
219	11	7.6	448
220	14	7.6	447
221	13	7.6	421
222	15	7.6	336
223	63	7.6	253
224	28	7.6	242
225	121	7.6	102
226	97	7.6	86
227	258	7.6	10
228	19	7.5	423
229	29	7.5	351
230	39	7.5	292
231	16	7.5	266
232	38	7.5	221
233	73	7.5	157
234	75	7.5	152
235	78	7.5	135
236	129	7.5	62
237	103	7.5	61
238	132	7.5	58
239	136	7.5	53
240	22	7.4	388
241	48	7.4	320
242	27	7.4	309
243	144	7.4	30
244	227	7.3	6
245	25	7.2	337
246	50	7.2	119
247	24	7.0	469
248	12	7.0	120
249	40	7.0	94
250	261	7.0	19
251	262	7.0	7
252	46	6.9	332
253	122	5.8	59

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