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SQL exercises

October 14, 15:00 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

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Recent leaders activity

Rating - rating position;
3rd score - number of points earned on the third stage;
Ex - exercise's number;
Start - time when the exercise was started;
Finish - time when the exercise was solved;
S_time (min) - time in minutes spent for solving the exercise

Involved in rating: 13895

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Vinogradova S.M. (Tigra1)	125	4	141	2026-10-10 17:01:15		5639
2	Sarkis'yan G. (gennadi_s)	14	188	208	2026-10-08 15:07:00	2026-10-10 12:57:58	2751
3	Safronov P.A. (Paulus73)	124	4	140	2026-10-09 09:42:14		7518
4	Safronov P.A. (Paulus73)	124	4	142	2026-10-08 11:19:23	2026-10-08 22:44:52	685
5	Safronov P.A. (Paulus73)	124	4	139	2026-10-08 10:01:07	2026-10-08 11:01:43	61
6	Safronov P.A. (Paulus73)	124	4	138	2026-10-06 09:41:15	2026-10-07 02:54:18	1033
7	Filippkin D.V. (_dimon_)	2	260	240	2026-10-05 14:13:38	2026-10-06 15:58:40	1545
8	Safronov P.A. (Paulus73)	124	4	53	2026-10-05 09:54:21	2026-10-05 12:48:36	174
9	Vinogradova S.M. (Tigra1)	125	4	140	2026-10-04 15:59:22	2026-10-05 11:25:11	1166
10	Vinogradova S.M. (Tigra1)	125	4	139	2026-10-03 08:58:36	2026-10-03 17:36:51	518
11	Filippkin D.V. (_dimon_)	2	260	53	2026-10-02 10:34:22	2026-10-02 13:34:56	181
12	Kostomarov A.V. (al29)	5	245	53	2026-09-30 08:53:59		20526
13	Koptel'tsev V. (selber)	18	133	183	2026-09-07 08:11:06		53689
14	Komarov A.N. (Shveda Saulya)	35	68	165	2026-08-28 13:41:52		67758
15	Koptel'tsev V. (selber)	18	133	188	2026-08-21 06:33:00		78267
16	Williams B. (BW)	36	65	252	2026-07-31 13:33:49		108086
17	Williams B. (BW)	36	65	264	2026-07-29 13:21:27		110979
18	Sigankov V.I. (vasilyvanc)	33	72	216	2026-07-23 12:13:08		119687
19	Sigankov V.I. (vasilyvanc)	33	72	241	2026-07-21 14:05:13		122455
20	Zajtsev V.S. (Sleeping)	22	116	241	2026-06-16 18:38:55		172581
21	Chernov D.V. (Kursist)	3	260	241	2026-05-23 20:49:50		207010
22	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		240675
23	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		250903
24	Vyazovetskov A.S. (alex_v)	6	243	264	2026-04-22 19:15:17		251745
25	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		282457
26	Petrov Y. (YuriPetrov)	32	76	210	2026-01-26 17:36:12		375684
27	Lukov D.R. (Gendalf)	247	0	32	2025-12-05 01:36:21		451524
28	Chebykin D. (GriGrim)	39	60	210	2025-07-11 01:12:59		663227
29	Chuvstvin M. (chuvstvinmaxim)	92	9	141	2025-01-29 11:09:56		897350
30	Chuvstvin M. (chuvstvinmaxim)	92	9	258	2025-01-21 00:01:28		909539
31	Lyubomudrov R.G. (born2tilt)	73	20	162	2024-10-10 07:48:40		1057391
32	Lyubomudrov R.G. (born2tilt)	73	20	202	2024-10-09 10:00:37		1058699
33	Frolov K.A. (Murderface_)	136	0	138	2024-09-23 14:49:59		1081450
34	Zajtsev V.S. (Sleeping)	22	116	164	2024-07-09 13:11:22		1190989
35	Slavutinskij V.V. (Vasilko)	456	0	5	2024-04-22 17:26:35		1303054
36	Slavutinskij V.V. (Vasilko)	456	0	7	2024-04-22 17:26:21		1303054
37	Williams B. (BW)	36	65	141	2024-04-02 11:30:28		1332210
38	Kukushkin S.A. (smog)	16	151	194	2024-03-15 01:29:39		1358730
39	Latyntsev N.G. (aks_nsk)	54	35	253	2024-03-05 14:17:51		1372362
40	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	305	2024-01-19 17:35:31		1438405
41	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	306	2024-01-17 10:21:39		1441718
42	Kurbanoff N.I. (Nariman Kurbanoff)	99	9	71	2024-01-15 18:32:03		1444108
43	Nikolaenko A.V. (Shadow77)	82	14	135	2023-12-24 02:07:10		1476773
44	Boiko D. (Angellore)	9	231	262	2023-11-17 19:04:36		1529036
45	Rudikov E. (cubie)	137	0	138	2023-10-31 17:27:54		1553612
46	Shkarednyj I.N. (Gosha)	37	64	198	2023-03-25 21:10:27		1870190
47	Latyntsev N.G. (aks_nsk)	54	35	255	2023-01-12 16:01:39		1974178
48	Koptel'tsev V. (selber)	18	133	237	2022-11-06 21:16:51		2070343
49	Borisenkov D.V. (xuser)	98	9	173	2022-10-10 15:48:20		2109552
50	Lukov D.R. (Gendalf)	247	0	90	2022-07-21 11:18:50		2226461
51	Pavlov A.V. (Anton)	59	29	141	2022-04-10 16:17:39		2373042
52	Sigankov V.I. (vasilyvanc)	33	72	161	2021-10-17 20:21:01		2624799
53	Fedevych V.I. (labuch_fedev)	38	63	221	2021-07-20 17:09:05		2753151
54	Pusev D.V. (Pusev_Denis)	19	132	234	2021-04-18 09:55:08		2887505
55	Kukushkin S.A. (smog)	16	151	12	2021-03-20 02:48:36		2929692
56	Pusev D.V. (Pusev_Denis)	19	132	159	2021-03-17 12:21:10		2933439
57	Kozharinov A. (bubala)	213	0	10	2020-09-30 09:55:07		3175505
58	Samarin A. (not.yet.sql.master)	148	0	112	2020-08-14 15:12:10		3242868
59	Koptel'tsev V. (selber)	18	133	259	2020-06-24 00:22:07		3317198
60	Samarin A. (not.yet.sql.master)	148	0	138	2020-05-09 21:48:04		3382152
61	Karasyova N.V. (vlksm)	10	223	230	2020-05-04 08:57:25		3390123
62	Fedevych V.I. (labuch_fedev)	38	63	226	2020-04-06 22:22:48		3429637
63	Pusev D.V. (Pusev_Denis)	19	132	184	2020-03-21 10:55:32		3453365
64	Fokin A. (Vizitor )	44	50	263	2019-08-18 21:46:14		3763754
65	Bazavluk M. (DoNotLook)	96	9	141	2019-07-30 23:04:12		3791036
66	Romanov K.Yu. (kostik)	313	0	12	2019-07-25 08:42:10		3799098
67	Kordyum A. (alko58)	232	0	12	2019-07-12 15:58:52		3817381
68	Pavlov A.V. (Anton)	59	29	168	2019-06-12 01:20:21		3861460
69	Mal'tsev A.V. (Palkin)	111	8	218	2019-03-06 20:25:17		4001435
70	Kurochkin P.A. (qwrqwr)	12	209	227	2018-12-28 14:37:25		4099703
71	Grishunin M.F. (MikhailFG)	90	10	144	2018-12-26 09:36:27		4102884
72	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4245075
73	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4305622
74	Voevutskij S.A. (SergLK)	219	0	45	2018-07-01 13:19:14		4358981
75	Zyrin V.E. (Vezyr)	553	0	29	2018-05-29 14:14:19		4406446
76	Chebykin D. (GriGrim)	39	60	228	2018-03-26 15:47:45		4498512
77	Shkarednyj I.N. (Gosha)	37	64	151	2018-03-23 22:38:32		4502422
78	Boiko D. (Angellore)	9	231	229	2018-03-23 21:19:51		4502500
79	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4525130
80	Shkarednyj I.N. (Gosha)	37	64	147	2018-02-26 08:13:30		4539287
81	F (uff)	66	23	95	2018-01-22 15:57:03		4589223
82	Aliev R. (y4nzi)	27	93	259	2017-12-17 18:48:39		4640891
83	Kordyum A. (alko58)	232	0	101	2017-11-21 18:18:43		4678361
84	Zajtsev V.S. (Sleeping)	22	116	190	2017-11-20 12:57:31		4680123
85	Aliev R. (y4nzi)	27	93	257	2017-11-19 19:09:17		4681191
86	Aliev R. (y4nzi)	27	93	255	2017-10-24 14:34:21		4718906
87	Kukushkin S.A. (smog)	16	151	171	2017-10-05 18:37:27		4746023
88	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4779086
89	Grinkevich D.L. (Dmitrij Grinkevich)	23	107	115	2017-07-21 14:09:37		4855730
90	Bezhaev A.Yu. (Baser)	8	234	220	2017-06-19 06:24:54		4902275
91	Vorob'ev E.V. (Johnnymnemonic)	165	0	138	2017-06-16 09:15:49		4906424
92	F (uff)	66	23	185	2017-06-01 10:27:49		4927952
93	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4967825
94	Movlyanov A.P. (Oct)	13	191	218	2017-03-22 18:23:50		5029716
95	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5264620
96	Sysoev A.V. (Sysa)	53	37	165	2016-09-16 00:07:24		5300093
97	Sysoev A.V. (Sysa)	53	37	168	2016-07-22 23:44:07		5379316
98	Karasyova N.V. (vlksm)	10	223	263	2016-04-23 11:28:43		5509651
99	Titovskij P.S. (kli3ma)	46	45	164	2016-03-25 05:49:30		5551751
100	Sivoglazov M.A. (Gaizenberg)	70	22	127	2015-11-28 14:08:52		5721171

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