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SQL exercises

June 11, 23:59 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: 15119

No	Person	Rating	3rd score	Ex	Start	Finish	S_time (min)
1	Suprun D. (TimonSP)	77	15	24	2026-06-06 13:08:47	2026-06-06 13:25:05	16
2	Makarov I.A. (_Bkmz_)	55	35	168	2026-06-06 10:14:03	2026-06-06 11:42:23	88
3	Varenikov D.M. (Dmitriy Varenikov)	20	128	241	2026-05-23 22:21:57	2026-06-05 18:53:52	18512
4	Vyazovetskov A.S. (alex_v)	7	241	163	2026-06-04 13:05:06	2026-06-05 15:49:57	1605
5	Vyazovetskov A.S. (alex_v)	7	241	234	2026-06-02 18:21:50	2026-06-03 17:04:09	1362
6	Vyazovetskov A.S. (alex_v)	7	241	231	2026-06-01 13:05:50	2026-06-02 11:49:03	1363
7	Makarov I.A. (_Bkmz_)	55	35	185	2026-05-30 11:04:38	2026-05-30 12:08:17	64
8	Vyazovetskov A.S. (alex_v)	7	241	157	2026-05-28 09:45:32	2026-05-29 14:38:42	1733
9	Chernov D.V. (Kursist)	2	262	241	2026-05-23 20:49:50		27550
10	Koptel'tsev V. (selber)	19	129	241	2026-05-23 20:23:43		27576
11	Williams B. (BW)	35	66	24	2026-05-15 13:25:32		39514
12	Komarov A.N. (Shveda Saulya)	37	65	160	2026-05-09 13:24:21		48155
13	Polyakov V.M. (rock_4)	76	15	173	2026-04-30 11:45:12		61214
14	Polyakov V.M. (rock_4)	76	15	164	2026-04-23 09:17:13		71442
15	Vyazovetskov A.S. (alex_v)	7	241	264	2026-04-22 19:15:17		72284
16	Polyakov V.M. (rock_4)	76	15	148	2026-04-01 11:23:28		102996
17	Petrov Y. (YuriPetrov)	32	78	210	2026-01-26 17:36:12		196223
18	Lukov D.R. (Gendalf)	245	0	32	2025-12-05 01:36:21		272063
19	Chebykin D. (GriGrim)	39	62	210	2025-07-11 01:12:59		483766
20	Williams B. (BW)	35	66	262	2025-04-17 12:32:37		605487
21	Filippkin D.V. (_dimon_)	3	259	263	2025-02-19 11:18:04		687641
22	Chuvstvin M. (chuvstvinmaxim)	89	11	141	2025-01-29 11:09:56		717889
23	Chuvstvin M. (chuvstvinmaxim)	89	11	258	2025-01-21 00:01:28		730078
24	Lyubomudrov R.G. (born2tilt)	71	22	162	2024-10-10 07:48:40		877931
25	Lyubomudrov R.G. (born2tilt)	71	22	202	2024-10-09 10:00:37		879239
26	Frolov K.A. (Murderface_)	134	0	138	2024-09-23 14:49:59		901989
27	Zajtsev V.S. (Sleeping)	22	118	164	2024-07-09 13:11:22		1011528
28	Slavutinskij V.V. (Vasilko)	455	0	5	2024-04-22 17:26:35		1123593
29	Slavutinskij V.V. (Vasilko)	455	0	7	2024-04-22 17:26:21		1123593
30	Williams B. (BW)	35	66	141	2024-04-02 11:30:28		1152749
31	Kukushkin S.A. (smog)	16	153	194	2024-03-15 01:29:39		1179270
32	Latyntsev N.G. (aks_nsk)	53	37	253	2024-03-05 14:17:51		1192902
33	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	305	2024-01-19 17:35:31		1258944
34	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	306	2024-01-17 10:21:39		1262258
35	Kurbanoff N.I. (Nariman Kurbanoff)	100	9	71	2024-01-15 18:32:03		1264647
36	Nikolaenko A.V. (Shadow77)	84	14	135	2023-12-24 02:07:10		1297312
37	Boiko D. (Angellore)	9	233	262	2023-11-17 19:04:36		1349575
38	Rudikov E. (cubie)	135	0	138	2023-10-31 17:27:54		1374152
39	Shkarednyj I.N. (Gosha)	36	66	198	2023-03-25 21:10:27		1690729
40	Latyntsev N.G. (aks_nsk)	53	37	255	2023-01-12 16:01:39		1794718
41	Koptel'tsev V. (selber)	19	129	237	2022-11-06 21:16:51		1890883
42	Borisenkov D.V. (xuser)	99	9	173	2022-10-10 15:48:20		1930091
43	Lukov D.R. (Gendalf)	245	0	90	2022-07-21 11:18:50		2047001
44	Pavlov A.V. (Anton)	60	29	141	2022-04-10 16:17:39		2193582
45	Sigankov V.I. (vasilyvanc)	33	74	161	2021-10-17 20:21:01		2445338
46	Fedevych V.I. (labuch_fedev)	38	65	221	2021-07-20 17:09:05		2573690
47	Pusev D.V. (Pusev_Denis)	18	134	234	2021-04-18 09:55:08		2708044
48	Kukushkin S.A. (smog)	16	153	12	2021-03-20 02:48:36		2750231
49	Pusev D.V. (Pusev_Denis)	18	134	159	2021-03-17 12:21:10		2753978
50	Kozharinov A. (bubala)	212	0	10	2020-09-30 09:55:07		2996044
51	Samarin A. (not.yet.sql.master)	146	0	112	2020-08-14 15:12:10		3063407
52	Koptel'tsev V. (selber)	19	129	259	2020-06-24 00:22:07		3137737
53	Samarin A. (not.yet.sql.master)	146	0	138	2020-05-09 21:48:04		3202691
54	Karasyova N.V. (vlksm)	10	225	230	2020-05-04 08:57:25		3210662
55	Fedevych V.I. (labuch_fedev)	38	65	226	2020-04-06 22:22:48		3250177
56	Pusev D.V. (Pusev_Denis)	18	134	184	2020-03-21 10:55:32		3273904
57	Fokin A. (Vizitor )	44	52	263	2019-08-18 21:46:14		3584293
58	Bazavluk M. (DoNotLook)	97	9	141	2019-07-30 23:04:12		3611575
59	Romanov K.Yu. (kostik)	312	0	12	2019-07-25 08:42:10		3619637
60	Kordyum A. (alko58)	230	0	12	2019-07-12 15:58:52		3637921
61	Pavlov A.V. (Anton)	60	29	168	2019-06-12 01:20:21		3681999
62	Mal'tsev A.V. (Palkin)	112	8	218	2019-03-06 20:25:17		3821974
63	Kurochkin P.A. (qwrqwr)	12	211	227	2018-12-28 14:37:25		3920242
64	Grishunin M.F. (MikhailFG)	93	10	144	2018-12-26 09:36:27		3923423
65	Shindin A.V. (AlShin)	25	99	45	2018-09-18 15:45:28		4065614
66	Skorohod I. (Dracul4ik)	79	15	45	2018-08-07 14:38:23		4126161
67	Voevutskij S.A. (SergLK)	218	0	45	2018-07-01 13:19:14		4179520
68	Zyrin V.E. (Vezyr)	549	0	29	2018-05-29 14:14:19		4226985
69	Chebykin D. (GriGrim)	39	62	228	2018-03-26 15:47:45		4319052
70	Shkarednyj I.N. (Gosha)	36	66	151	2018-03-23 22:38:32		4322961
71	Boiko D. (Angellore)	9	233	229	2018-03-23 21:19:51		4323040
72	Azbel' E.G. (enull)	78	15	148	2018-03-08 04:10:21		4345669
73	Shkarednyj I.N. (Gosha)	36	66	147	2018-02-26 08:13:30		4359826
74	F (uff)	65	25	95	2018-01-22 15:57:03		4409762
75	Aliev R. (y4nzi)	27	95	259	2017-12-17 18:48:39		4461431
76	Kordyum A. (alko58)	230	0	101	2017-11-21 18:18:43		4498901
77	Zajtsev V.S. (Sleeping)	22	118	190	2017-11-20 12:57:31		4500662
78	Aliev R. (y4nzi)	27	95	257	2017-11-19 19:09:17		4501730
79	Aliev R. (y4nzi)	27	95	255	2017-10-24 14:34:21		4539445
80	Kukushkin S.A. (smog)	16	153	171	2017-10-05 18:37:27		4566562
81	Skorohod I. (Dracul4ik)	79	15	156	2017-09-12 19:34:33		4599625
82	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	115	2017-07-21 14:09:37		4676270
83	Bezhaev A.Yu. (Baser)	8	236	220	2017-06-19 06:24:54		4722815
84	Vorob'ev E.V. (Johnnymnemonic)	163	0	138	2017-06-16 09:15:49		4726964
85	F (uff)	65	25	185	2017-06-01 10:27:49		4748492
86	Skorohod I. (Dracul4ik)	79	15	146	2017-05-04 17:54:53		4788365
87	Movlyanov A.P. (Oct)	13	193	218	2017-03-22 18:23:50		4850256
88	Skorohod I. (Dracul4ik)	79	15	144	2016-10-10 15:20:14		5085159
89	Sysoev A.V. (Sysa)	49	39	165	2016-09-16 00:07:24		5120632
90	Sysoev A.V. (Sysa)	49	39	168	2016-07-22 23:44:07		5199855
91	Karasyova N.V. (vlksm)	10	225	263	2016-04-23 11:28:43		5330191
92	Titovskij P.S. (kli3ma)	47	45	164	2016-03-25 05:49:30		5372290
93	Sivoglazov M.A. (Gaizenberg)	66	24	127	2015-11-28 14:08:52		5541711
94	Maslyaev V.S. (Velmont)	91	11	170	2015-11-06 14:01:20		5573398
95	Sivoglazov M.A. (Gaizenberg)	66	24	261	2015-10-13 23:22:26		5607397
96	Fomichev A.V. (Fomichev)	199	0	101	2015-10-07 11:21:04		5616758
97	Grinkevich D.L. (Dmitrij Grinkevich)	23	109	188	2015-09-19 12:34:48		5642605
98	Movlyanov A.P. (Oct)	13	193	194	2015-09-09 14:10:52		5656909
99	Frolov (dr.shtopor)	82	14	141	2015-09-08 10:04:55		5658594
100	Varenikov D.M. (Dmitriy Varenikov)	20	128	263	2015-08-31 08:35:37		5670204

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