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SQL exercises

June 14, 16:29 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: 15107

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Makarov I.A. (_Bkmz_)	49	40	143	2026-06-12 10:09:54	2026-06-13 03:07:28	1018
2	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
3	Makarov I.A. (_Bkmz_)	49	40	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
4	Varenikov D.M. (Dmitriy Varenikov)	20	129	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
5	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
6	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
7	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
8	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		31420
9	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		31446
10	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		43384
11	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		52025
12	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		65084
13	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		75312
14	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		76154
15	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		106866
16	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		200093
17	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		275933
18	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		487636
19	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		609357
20	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		691511
21	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		721760
22	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		733948
23	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		881801
24	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		883109
25	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		905859
26	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1015398
27	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1127463
28	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1127463
29	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1156619
30	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1183140
31	Latyntsev N.G. (aks_nsk)	54	37	253	2024-03-05 14:17:51		1196772
32	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1262814
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1266128
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1268517
35	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1301182
36	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1353445
37	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1378022
38	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1694599
39	Latyntsev N.G. (aks_nsk)	54	37	255	2023-01-12 16:01:39		1798588
40	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1894753
41	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1933961
42	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2050871
43	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2197452
44	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2449208
45	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2577560
46	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2711914
47	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2754101
48	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2757848
49	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2999914
50	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3067277
51	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3141607
52	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3206561
53	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3214532
54	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3254047
55	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3277774
56	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3588163
57	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3615445
58	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3623507
59	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3641791
60	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3685869
61	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3825844
62	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3924112
63	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3927293
64	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4069484
65	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4130031
66	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4183390
67	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4230855
68	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4322922
69	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4326831
70	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4326910
71	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4349539
72	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4363696
73	F (uff)	65	25	95	2018-01-22 15:57:03		4413632
74	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4465301
75	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4502771
76	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4504532
77	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4505600
78	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4543315
79	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4570432
80	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4603495
81	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4680140
82	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4726685
83	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4730834
84	F (uff)	65	25	185	2017-06-01 10:27:49		4752362
85	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4792235
86	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4854126
87	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5089029
88	Sysoev A.V. (Sysa)	50	39	165	2016-09-16 00:07:24		5124502
89	Sysoev A.V. (Sysa)	50	39	168	2016-07-22 23:44:07		5203725
90	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5334061
91	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5376160
92	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5545581
93	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5577268
94	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5611267
95	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5620628
96	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5646475
97	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5660779
98	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5662465
99	Varenikov D.M. (Dmitriy Varenikov)	20	129	263	2015-08-31 08:35:37		5674074
100	Chebykin D. (GriGrim)	39	62	263	2015-08-28 21:04:30		5677645

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